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John S, Jain A, Khan E, Gupta S, Chandra S. Metamorphosis of Dentigerous cyst: A case Series with Insight into Molecular Profiling. Indian J Otolaryngol Head Neck Surg 2024; 76:1402-1409. [PMID: 38440613 PMCID: PMC10908750 DOI: 10.1007/s12070-023-04156-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 08/18/2023] [Indexed: 03/06/2024] Open
Abstract
The objective of this study was to review the clinical, radiologic, and histologic aspects of cases of dentigerous cysts metamorphosing into different entities along with comments on the molecular factors involved in the process. A series comprising 8 cases of dentigerous cysts was performed retrospectively along with a comprehensive literature review. Two cases of dentigerous cyst converting into mucous metaplasia were included, out of which one case was transformed into ameloblastoma after a year. The other two cases were reported as acanthomatous and unicystic ameloblastoma, whereas four transitioned to AOT. The complete review of cases and literature with molecular profiling concluded that the lining of dentigerous cysts has the potential for transforming into benign odontogenic tumors. Therefore, a careful clinical and histopathological examination is crucial for the correct diagnosis. Also, a thorough molecular understanding of the cystic lining is required.
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Affiliation(s)
- Sharon John
- Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George’s Medical University, Lucknow, India
| | - Ayushi Jain
- Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George’s Medical University, Lucknow, India
| | - Eram Khan
- Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George’s Medical University, Lucknow, India
| | - Shalini Gupta
- Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George’s Medical University, Lucknow, India
| | - Shaleen Chandra
- Dept of Oral & Maxillofacial Pathology and Oral Microbiology, King George’s Medical University, Lucknow, India
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2
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Liu Y, Smith MH, Patel PB, Bilodeau EA. Pediatric Odontogenic Tumors. Pediatr Dev Pathol 2023; 26:583-595. [PMID: 38032744 DOI: 10.1177/10935266231200115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Odontogenic tumors are rare tumors of the jaws that arise from remnants of the tooth forming apparatus. Some odontogenic tumors demonstrate strong predilection for pediatric patients including the unicystic ameloblastoma, adenomatoid odontogenic tumor, ameloblastic fibroma, ameloblastic fibro-odontoma, odontoma, and primordial odontogenic tumor. In this review, we discuss the clinical, radiographic, histopathologic, and molecular characteristics of select odontogenic tumors that demonstrate pediatric predilection and review management.
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Affiliation(s)
- Yingci Liu
- Rutgers School of Dental Medicine, Newark, NJ, USA
| | | | - Paras B Patel
- CMO, Center for Oral Pathology, Dallas, TX, USA
- Oral and Maxillofacial Pathology ProPath, Dallas, TX, USA
| | - Elizabeth Ann Bilodeau
- Oral and Maxillofacial Pathology, UDHS Oral Pathology Laboratory, University of Pittsburgh School of Dental Medicine, Pittsburgh PA, USA
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3
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McLean AC, Vargas PA. Cystic Lesions of the Jaws: The Top 10 Differential Diagnoses to Ponder. Head Neck Pathol 2023; 17:85-98. [PMID: 36928736 PMCID: PMC10063769 DOI: 10.1007/s12105-023-01525-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/06/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Cystic lesions of the gnathic bones present challenges in differential diagnosis. This category includes a smorgasbord of odontogenic and non-odontogenic entities that may be reactive or neoplastic in nature. While most cystic jaw lesions are benign, variability in biologic behavior makes distinction between these entities absolutely crucial. METHODS Review. RESULTS Two clinical cases are presented in parallel and are followed by an illustrated discussion of the ten most likely differential diagnoses that should be considered when confronted with a cystic jaw lesion. Strong emphasis is placed on the histologic differences between these entities, empowering readers to diagnose them with confidence. Perhaps even more importantly, the more common diagnostic pitfalls in gnathic pathology are discussed, recognizing that a definitive diagnosis cannot be rendered in every situation. The histologic diagnoses for the two clinical cases are finally revealed. CONCLUSION Cystic lesions of the maxilla and mandible may be odontogenic or non-odontogenic. The most common cystic lesions are the reactive periapical cyst, and the dentigerous cyst (which is developmental in nature). It is important to note that cystic neoplasms also occur in the jaws, and that the presence of inflammation may obscure the diagnostic histologic features of lesions like odontogenic keratocyst and unicystic ameloblastoma. Ancillary testing is of limited diagnostic value in most scenarios. However, both clinical and radiographic information (such as the location, size, duration, associated symptoms, and morphology of the lesion in its natural habitat) are significantly useful.
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Affiliation(s)
- Anne C McLean
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Clements University Hospital UT Southwestern Medical Center, 6201 Harry Hines Blvd, RM UH04.252, Dallas, TX, 75390, USA.
| | - Pablo A Vargas
- Department of Oral Diagnosis, The State University of Campinas, Piracicaba, São Paulo, Brazil
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T J, Patil N, Keluskar V, M S, S LK, Panwar A. An Unusual Presentation of “Two-Thirds Tumor” in the Mandible – A Diagnostic Quandary with a Review of the Literature. GALICIAN MEDICAL JOURNAL 2022. [DOI: 10.21802/gmj.2022.4.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An adenomatoid odontogenic tumor (AOT) is an uncommon benign tumor of the oral cavity commonly found in the maxillary anterior region and is associated with impacted canines in young females. It rarely occurs in the mandibular region with no impacted or missing teeth. A 21-year-old female reported to the clinic with swelling on the right side of the face for the past six months with no history of pain. Radiographic features such as unilocular radiolucency with thinning of the cortical borders and considerable buccal cortical expansion, as well as some evidence of radiopaque specks were noted. Histopathological examination revealed cells with hyperchromatic nuclei, rosette-like structures with focal areas of calcified mass, and concentric rings resembling Liesegang rings, suggestive of AOT. The tumor was treated surgically by enucleation and cauterization. Although follicular type is a common variant, the tumor presented in this case was of extrafollicular type noted in the mandibular canine and premolar regions of a young female patient with no related impacted tooth.
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Nithya S, Saxena S, Kharbanda J. Peripheral adenomatoid odontogenic tumor of mandible - A synchronous presentation or a subtype?! J Oral Maxillofac Pathol 2021; 25:167-170. [PMID: 34349430 PMCID: PMC8272493 DOI: 10.4103/jomfp.jomfp_450_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 04/01/2021] [Indexed: 12/04/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) with its unique and varied presentations histologically and clinically has always been an enigma. AOTs are multifaceted in their appearance with reports pointing out to its occurrence as a synchronous tumor, a purely cystic variant or with multiple foci; however, the three commonly encountered forms are Follicular/Coronal, Extra Follicular/Extra Coronal and Peripheral variants. Here, we present a subtype of the Peripheral AOT (PAOT) seen synchronous with an intraosseous cystic variant of AOT in a 16-year-old female in the anterior mandible. This case is unique in that a PAOT occurring adjacent to a focally aggressive intraosseous cystic AOT (not associated with impacted tooth) could either be synchronous with no connection to the intraosseous component or could actually be an erupted intraosseous cystic variant with peripheral manifestation. Features of cortical expansion, perforation and displacement of teeth without resorption were seen. Histologically, all the classical features of AOT along with abundant eosinophilic amorphous fibrinous deposits, cellular vacuolization, clearing of cells, dystrophic and reactive bone formation and a cystic lining were seen. Thus, this case of PAOT would add to the myriad presentation of AOT making it one of the most often discussed odontogenic tumor.
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Affiliation(s)
- S Nithya
- Department of Oral Pathology and Microbiology, ESIC Dental College and Hospital, Delhi, India
| | - Susmita Saxena
- Department of Oral Pathology and Microbiology, ESIC Dental College and Hospital, Delhi, India
| | - Jitin Kharbanda
- Department of Oral Pathology and Microbiology, ESIC Dental College and Hospital, Delhi, India
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Ide F, Miyazaki Y, Nishimura M, Kikuchi K. The true nature of adenomatoid odontogenic tumor as detailed in an overlooked abstract. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2021. [DOI: 10.1016/j.ajoms.2020.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fujita A, Ueyama Y, Nagatsuka H, Kawamata H. A case of large adenomatoid odontogenic tumor in the posterior region of the mandible showing root resorption. JOURNAL OF ORAL MEDICINE AND ORAL SURGERY 2021. [DOI: 10.1051/mbcb/2020053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Introduction: Adenomatoid odontogenic tumor (AOT) is a rare tumor of epithelial origin, and usually presents as a unilocular radiolucency in the maxillary anterior region in adolescent females. Observation: A 31-year-old Japanese male, having a large adenomatoid odontogenic tumor from the right molar region to the left anterior region of the mandible showing root resorption of the neighboring teeth, was presented to the hospital. The lesion was totally resected under general anesthesia. Commentary: AOT may cause displacement of the neighboring teeth. But root resorption is a very rare finding. AOTs are relatively small in size. Conclusion: The patient was under follow-up and had not shown any signs of recurrence 12 months after surgery.
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Saini N, Kadian B, Rajain T, Narang S, Namdev R. Extrafollicular Adenomatoid Odontogenic Tumor in the Maxillary Incisor Region Disguised as Gingival Swelling. Contemp Clin Dent 2020; 11:184-189. [PMID: 33110335 PMCID: PMC7583531 DOI: 10.4103/ccd.ccd_344_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/21/2020] [Accepted: 06/07/2020] [Indexed: 11/28/2022] Open
Abstract
Adenomatoid Odontogenic Tumor (AOT) is a benign, non-invasive tumor with slow but progressive growth, mainly affecting younger patients, predominantly females. It is more often located in maxilla, involving an unerupted or erupted tooth, mostly canine. There are three variants, namely follicular, extra-follicular and peripheral. Permanent cuspids account for 60% of all follicular and 89% of all extra-follicular AOT. This article discusses a unique case of extra-follicular AOT in 9 year old male patient associated with partially erupted maxillary central incisor.
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Affiliation(s)
- Natasha Saini
- Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - Bindu Kadian
- Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - Tanu Rajain
- Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - Saurabh Narang
- Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
| | - Ritu Namdev
- Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
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9
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Siriwardena BSMS, Udagama MNGP, Tennakoon TMPB, Athukorala DAADW, Jayasooriya PR, Tilakaratne WM. Clinical and demographic characteristics of adenomatoid odontogenic tumors: analysis of 116 new cases from a single center. Braz J Otorhinolaryngol 2020; 88:309-315. [PMID: 32782125 PMCID: PMC9422414 DOI: 10.1016/j.bjorl.2020.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/07/2020] [Accepted: 06/10/2020] [Indexed: 11/30/2022] Open
Abstract
Introduction The adenomatoid odontogenic tumor is a relatively uncommon odontogenic neoplasm representing about 4.7% of all odontogenic tumors. Objective The aim of this study was to determine the demographic and clinical profile of the adenomatoid odontogenic tumors in a Sri Lankan population. Methods Data gathered from the cases received for a period of 38 years from the Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya. Request forms, biopsy reports and electronic data base of the department were used to obtain relevant information. Demographic data including age, gender and location of the tumor were included in the analysis. Results Out of 116 cases of adenomatoid odontogenic tumor, the mean age was 21.02 ± 11.24. It occurs more fre quently in the second decade of life, more prevalent in females, most often associated with the maxilla, predominantly affecting anterior jaw bones and presenting mostly in the right side of the jaw bone. The results from the present study showed the statistically significant relationship with site of occurrence (maxilla/mandible) and age (p < 0.005). Further, depending on whether it occurs in anterior/mid/posterior site also showed a significant relationship with age (p ≤ 0.001). However, side of occurrence, left or right or site of occurrence, showed no statistically significance with age (p > 0.05). Conclusion Adenomatoid odontogenic tumor occurs more frequently in the second decade of life with a significant female predominance and the commonest site is anterior maxilla. This study revealed few differences on demographic and clinical presentations of adenomatoid odontogenic tumor from some regions of the world.
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Affiliation(s)
| | | | | | | | | | - Wanninayake Mudiyanselage Tilakaratne
- University of Peradeniya, Faculty of Dental Sciences, Sri Lanka; Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Malaysia
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Sadasivan A, Ramesh R, Kurien NM. Peripheral Adenomatoid Odontogenic Tumor - A Rare Cause of Gingival Enlargement: A Case Report with CBCT Findings. Clin Cosmet Investig Dent 2020; 12:297-304. [PMID: 32801923 PMCID: PMC7398881 DOI: 10.2147/ccide.s261308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 06/26/2020] [Indexed: 11/26/2022] Open
Abstract
Introduction Adenomatoid odontogenic tumor (AOT) is an uncommon benign odontogenic lesion with varied clinical and histological presentation. It has slow growth potential and a low recurrence rate. The tumor is mainly seen in females in the second decade of life, predominantly affecting the maxilla and associated most often with unerupted canine teeth, earning the epithet “two-thirds tumor”. There are three variants: intrafollicular, extrafollicular, and peripheral. The peripheral or extra osseous type is a rare form that arises in gingival tissue. Case Presentation This article describes a case of AOT in a 10-year-old girl who presented with gingival enlargement in relation to the maxillary left central incisor. Interestingly, intraoral periapical radiography did not show any significant findings. However, cone-beam computed tomography of the site revealed significant bone loss in the area. A surgical excision was done. Histopathological examination revealed features of AOT. Based on clinical, radiographic, and histological evidence, a diagnosis of peripheral AOT (PAOT) was made. Conclusion PAOT is a rare disease entity in children that mimics gingival swelling, and may often be misdiagnosed by dentists. With literature still ambiguous on the origin of the tumor and biological course, it becomes imperative to examine any gingival swelling in children with a proper clinical examination, periapical radiography, and if necessary cone-beam computed tomography. Excision and histopathological evaluation will help in confirming the exact disease condition.
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Affiliation(s)
- Arun Sadasivan
- Department of Periodontics, Sree Mookambika Institute of Dental Sciences, Kulashekaram, Tamil Nadu, India
| | - Roshni Ramesh
- Department of Periodontics, Government Dental College, Thrissur, Kerala, India
| | - Nikhil M Kurien
- Department of Oral and Maxillofacial Surgery, PMS College of Dental Science and Research, Trivandrum, Kerala, India
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11
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Patel HB, Movaniya PN, Desai NN, Makwana TR, Makwana KG, Mehta PD. Adenomatoid Odontogenic Tumor Associated with Impacted Mandibular Canine - A Case Report. Ann Maxillofac Surg 2020; 10:484-487. [PMID: 33708601 PMCID: PMC7943982 DOI: 10.4103/ams.ams_77_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/11/2020] [Accepted: 04/15/2020] [Indexed: 11/04/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is a relatively rare, benign, hamartomatous, and cystic odontogenic neoplasm that was first described more than a century ago. It accounts for 2-7% of all odontogenic tumors. The lesion still continues to intrigue experts with its varied histomorphology and controversies regarding its development. The present article describes a case of cystic AOT with an unusual histomorphology associated with an impacted 43 in a 15-year-old male.
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Affiliation(s)
- Hirakben B Patel
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Pratap N Movaniya
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Nimisha N Desai
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Tushar R Makwana
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Kalpesh G Makwana
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Payal D Mehta
- Department of Oral and Maxillofacial Surgery, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
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12
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Roza ALOC, Carlos R, van Heerden WFP, de Andrade BAB, Mosqueda-Taylor A, Santos-Silva AR, Lopes MA, de Almeida OP, Romañach MJ, Vargas PA. An international collaborative study of 105 new cases of adenomatoid odontogenic tumors. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 132:327-338. [PMID: 32680811 DOI: 10.1016/j.oooo.2020.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/07/2020] [Accepted: 06/01/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE The aim of this study was to report the clinicopathologic features of 105 new cases of adenomatoid odontogenic tumor (AOT) from Brazil, Guatemala, Mexico, and South Africa. STUDY DESIGN Clinical and radiographic data were collected from records of 5 oral pathology laboratories, and all cases were microscopically reviewed. RESULTS This series of cases included 36 (34.2%) from South Africa; 33 (31.4%) from Brazil; 23 (21.9%) from Mexico; and 13 (12.3%) from Guatemala. Seventy-two patients (68.5%) were females and 33 patients (31.4%) were males, with an average age of 19.2 years. The tumors predominantly affected the anterior maxilla (48.5%), followed by the anterior mandible (29.5%); posterior mandible (15.2%); and posterior maxilla (6.6%). Sixty-three tumors (63.6%) were follicular, 34 (34.3%) were extrafollicular, and 2 (2%) were peripheral. In most cases, the tumors caused considerable cortical expansion (average size 3.4 cm). Microscopically, most cases showed rosette-like and duct-like structures. CONCLUSIONS This is one of the largest case series of AOTs reported in the literature and the first multicenter study involving populations from Latin America and South Africa. In a fifth of the present cases, the posterior regions of the gnathic bones were affected and the tumors demonstrated larger sizes compared with cases occurring in other populations.
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Affiliation(s)
| | - Román Carlos
- Pathology Section, Centro Clínico de Cabeza y Cuello/Hospital Herrera Llerandi, Guatemala City, Guatemala
| | - Willie F P van Heerden
- Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | | | - Adalberto Mosqueda-Taylor
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana Xochimilco, Mexico City, Mexico
| | - Alan Roger Santos-Silva
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Márcio Ajudarte Lopes
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Oslei Paes de Almeida
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Mário José Romañach
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Pablo Agustin Vargas
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil; Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa.
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Clinico-Pathological Presentations of Cystic and Classic Adenomatoid Odontogenic Tumors. Diagnostics (Basel) 2019; 10:diagnostics10010003. [PMID: 31861900 PMCID: PMC7169454 DOI: 10.3390/diagnostics10010003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/08/2019] [Accepted: 12/17/2019] [Indexed: 12/28/2022] Open
Abstract
The objective of the study is to present the clinico-pathological features of cystic and classic adenomatoid odontogenic tumors (AOTs) in order to identify the differences between the two variants of AOT. Materials and method: The study sample comprised of 41 AOTs, which were categorized into cystic and classic AOTs. Cystic AOTs are diagnosed as such when macroscopic and microscopic evidence of a cyst is present together with histopathological criteria of AOT (WHO–2017). Results: The study sample comprised of eleven cystic and thirty classic AOTs. Eight cystic AOTs were regarded as arising from dentigerous cysts as these lesions were attached to the cemento-enamel junction of the impacted teeth. Though not statistically significant, in contrast to classic AOTs which showed female predilection, cystic AOTs were more prevalent in males. Cystic AOTs tend to present as significantly larger lesions compared to classic AOTs (p < 0.02). In both cystic and classic AOTs, duct-like structures and epithelial whorls were the two most prominent histopathological features present in the majority of tumors. Two AOTs with massive amounts of dentinoid occurred in the mandible and presented as large lesions that eroded cortical bone. None of the 12 patients with follow-up information presented with recurrences. Conclusion: Except for the size of the lesion, no significant clinico-pathological differences were observed between cystic and classic AOTs. Therefore the cystic AOTs can be considered as a variant of AOT with enucleation, simple excision, or radical excision as the treatment of choice depending on the extent of the lesion, similar to classic AOTs.
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Mahdavi N, Rahrotaban S, Sedaghati A. Squamous Odontogenic Tumor-Like Proliferation in Odontogenic Cysts: Report of Two Cases. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES 2019. [DOI: 10.29252/jrdms.4.3.43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Chakraborty R, Sen S, Goyal K, Pandya D. "Two third tumor": A case report and its differential diagnosis. J Family Med Prim Care 2019; 8:2140-2143. [PMID: 31334195 PMCID: PMC6618232 DOI: 10.4103/jfmpc.jfmpc_351_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Adenamatoid odontogenic tumor (AOT) is an odontogenic tumor with a prevalence of 2.2–7.1%. AOT is a benign, noninvasive, and progressive lesion which is also known as “a two third tumor.” As the name suggests the tumor occurs in the maxilla in two third of cases. It occurs in young patients in two third of cases and associated with missing or unerupted teeth in two third of cases. Two third cases are associated with the maxillary canine. Characterized by slow growing, gradually enlarging, painless swelling associated with missing teeth. We report a case of a male patient of age 22 years, with characteristic findings. AOT resembles different odontogenic cysts and tumors which may include dentigerous cyst, globulomaxillary cyst, ameloblastoma, and other entities, hence must be well differentiated. Conservative surgical enucleation is the treatment of choice. Recurrence rate for AOT is 0.2%. Prognosis is excellent when completely removed in toto.
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Affiliation(s)
- Rakashree Chakraborty
- Department of Oral Medicine and Radiology, Maharishi Markandeshwar College of Dental Sciences and Research (Deemed to be University), Ambala, Haryana, India
| | - Sourav Sen
- Department of Public Health Dentistry, Maharishi Markandeshwar College of Dental Sciences and Research (Deemed to be University), Ambala, Haryana, India
| | - Kriti Goyal
- Department of Periodontics, Maharishi Markandeshwar College of Dental Sciences and Research (Deemed to be University), Ambala, Haryana, India
| | - Divya Pandya
- Department of Oral Medicine and Radiology, Kusum Devi Sundarlal Dugar Jain Dental College and Hospital, Cossipore, Kolkata, West Bengal, India
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Han L, Downing A, Farr D, Dasgupta K, Stewart D. Adenomatoid odontogenic tumour: A rare threat to orthodontic treatment planning. J Orthod 2019; 46:259-266. [PMID: 31230507 DOI: 10.1177/1465312519856357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This case report aims to increase awareness of how an adenomatoid odontogenic tumour (AOT) can present in a similar fashion to a dentigerous cyst and the importance of accurate histopathological diagnosis. In this case, the AOT resulted in loss of the upper left permanent canine in a patient who already had a congenitally absent upper left second premolar, compromising the original orthodontic treatment plan.
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Affiliation(s)
- Laura Han
- 1 Department of Oral and Maxillofacial Surgery, James Cook University Hospital, Middlesbrough, UK
| | - Alison Downing
- 2 Department of Orthodontics, James Cook University Hospital, Middlesbrough, UK
| | - David Farr
- 1 Department of Oral and Maxillofacial Surgery, James Cook University Hospital, Middlesbrough, UK
| | - Kaushik Dasgupta
- 3 Department of Cellular Pathology, University Hospital of North Tees and Hartlepool NHSFT, Stockton-on-Tees, UK
| | - Duncan Stewart
- 1 Department of Oral and Maxillofacial Surgery, James Cook University Hospital, Middlesbrough, UK
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Coura BP, Bernardes VF, de Sousa SF, França JA, Pereira NB, Pontes HAR, Batista AC, da Cruz Perez DE, Albuquerque Junior RLCD, de Souza LB, Martins MD, Diniz MG, Gomez RS, Gomes CC. KRAS mutations drive adenomatoid odontogenic tumor and are independent of clinicopathological features. Mod Pathol 2019; 32:799-806. [PMID: 30643167 DOI: 10.1038/s41379-018-0194-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 11/09/2022]
Abstract
Adenomatoid odontogenic tumor is a benign encapsulated epithelial odontogenic tumor that shows an indolent clinical behavior. We have reported in a few adenomatoid odontogenic tumors mutations in KRAS, which is a proto-oncogene frequently mutated in cancer such as lung, pancreas, and colorectal adenocarcinomas. We aimed to assess KRAS mutations in the hotspot codons 12, 13, and 61 in a large cohort of adenomatoid odontogenic tumors and to test the association of these mutations with clinical (age, site, tumor size, follicular/extrafollicular subtypes) and histopathological parameters. Thirty eight central cases were studied. KRAS codon 12 mutations were assessed by TaqMan allele-specific qPCR (p.G12V/R) and/or Sanger sequencing, and codon 13 and 61 mutations were screened by Sanger. Histological tumor capsule thickness was evaluated by morphometric analysis. Additionally, the phosphorylated form of the MAPK downstream effector ERK1/2 was investigated. Statistical analysis was carried out to test the association of KRAS mutations with clinicopathological parameters. KRAS c.35 G >T mutation, leading to p.G12V, was detected in 15 cases. A novel mutation in adenomatoid odontogenic tumor, c.34 G >C, leading to p.G12R, was detected in 12 cases and the other 11 were wild-type. Codon 12 mutations were not associated with the clinicopathological parameters tested. RAS mutations are known to activate the MAPK pathway, and we show that adenomatoid odontogenic tumors express phosphorylated ERK1/2. In conclusion, a high proportion of adenomatoid odontogenic tumors (27/38, 71%) have KRAS codon 12 mutations, which occur independently of the clinicopathological features evaluated. Collectively, these findings indicate that KRAS mutations and MAPK pathway activation are the common features of this tumor and some cancer types. Although it is unclear why different codon 12 alleles occur in different disease contexts and the complex interactions between tumor genotype and phenotype need clarification, on the basis of our results the presence of KRAS p.G12V/R favors the adenomatoid odontogenic tumor diagnosis in challenging oral neoplasm cases.
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Affiliation(s)
- Bruna Pizziolo Coura
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vanessa Fátima Bernardes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Sílvia Ferreira de Sousa
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Josiane Alves França
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Núbia Braga Pereira
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Hélder Antônio Rebelo Pontes
- Service of Oral Pathology, João de Barros Barreto University Hospital, Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Aline Carvalho Batista
- Department of Oral Pathology, School of Dentistry, Universidade Federal de Goiás (UFG), Goiânia, Brazil
| | - Danyel Elias da Cruz Perez
- Department of Clinical and Preventive Dentistry, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | | | - Lélia Batista de Souza
- Department of Dentistry, Service of Oral Pathology, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Marina Gonçalves Diniz
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Carolina Cavalieri Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil.
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18
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Abstract
Adenomatoid odontogenic tumor (AOT) is a rare noninvasive odontogenic tumor that occurs mostly in the second decade of life. Based on its tooth association, AOT can be classified into three categories of follicular, extrafollicular, and peripheral types; the follicular classification is considered as the most common type of AOT. This study reported a large extrafollicular case of AOT in a 40-year-old female. She was asymptomatic and tumor was detected accidentally by her dental practitioner. Since the panoramic radiograph showed a well-defined unilocular radiolucent lesion, we observed radiopaque spots within the lesion by using cone beam computed tomography. The extrafollicular type can mimic a periapical radiolucent lesion.
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Shaikh S, Bansal S, Desai RS, Ahmad I. Aggressive adenomatoid odontogenic tumor of the mandible: A rare case report and review of the literature. J Oral Maxillofac Pathol 2018; 22:S11-S15. [PMID: 29491597 PMCID: PMC5824502 DOI: 10.4103/jomfp.jomfp_69_15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is a relatively rare and distinct odontogenic tumor that is exclusively odontogenic epithelium in origin. Although considerable numbers of reports are available with regard to the clinical and histological spectrum of AOT, very few have highlighted its rare aggressive nature. This article focuses on an AOT causing jaw swelling in the mandibular anterior region with cortical plate expansion and perforation, root resorption and paresthesia. The present case had remarkably unusual clinical and radiographic features that distinguished it from most conventional AOTs and supported its neoplastic nature.
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Affiliation(s)
- Sana Shaikh
- Department of Oral Pathology, Nair Hospital Dental College, Mumbai, Maharashtra, India
| | - Shivani Bansal
- Department of Oral Pathology, Nair Hospital Dental College, Mumbai, Maharashtra, India
| | - Rajiv S Desai
- Department of Oral Pathology, Nair Hospital Dental College, Mumbai, Maharashtra, India
| | - Islam Ahmad
- Department of Oral Pathology, Nair Hospital Dental College, Mumbai, Maharashtra, India
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20
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Ringer E, Kolokythas A. Bone Margin Analysis for Benign Odontogenic Tumors. Oral Maxillofac Surg Clin North Am 2017; 29:293-300. [DOI: 10.1016/j.coms.2017.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Silva BSF, Bueno MR, Yamamoto-Silva FP, Gomez RS, Peters OA, Estrela C. Differential diagnosis and clinical management of periapical radiopaque/hyperdense jaw lesions. Braz Oral Res 2017; 31:e52. [PMID: 28678971 DOI: 10.1590/1807-3107bor-2017.vol31.0052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/21/2017] [Indexed: 11/22/2022] Open
Abstract
Great attention has been given to the study of radiolucent periapical lesions to avert possible misdiagnosis of apical periodontitis associated with certain radiolucent non-endodontic lesions. However, there are a significant number of radiopaque lesions found in the periapical region, which could be equally relevant to endodontic practice. The diagnosis and management of these radiopaque/hyperdense lesions could be challenging to the endodontist. These bone alterations could be neoplastic, dysplastic or of metabolic origin. In the context of the more widespread use of cone-beam CT, a detailed review of radiopaque inflammatory and non-inflammatory lesions is timely and may aid clinicians perform a differential diagnosis of these lesions. Distinguishing between inflammatory and non-inflammatory lesions simplifies diagnosis and consequently aids in choosing the correct therapeutic regimen. This review discusses the literature regarding the clinical, radiographic, histological and management aspects of radiopaque/hyperdense lesions, and illustrates the differential diagnoses of these lesions.
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Affiliation(s)
| | - Mike Reis Bueno
- Universidade de Cuiabá - UNIC, School of Dentistry, Department of Stomatology, University of Cuiabá, Cuibá, MT, Brazil
| | - Fernanda P Yamamoto-Silva
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Stomatologic Sciences, Goiânia, GO, Brazil
| | - Ricardo Santiago Gomez
- Universidade Federal de Minas Gerias - UFMG, School of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, MG, Brazil
| | - Ove Andreas Peters
- University of the Pacific, Arthur A. Dugoni School of Dentistry, Department of Endodontics, San Francisco, CA, United States of America
| | - Carlos Estrela
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Stomatologic Sciences, Goiânia, GO, Brazil
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22
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Rajendra Santosh AB, Coard KC, Williams EB, Jones T. Adenomatoid odontogenic tumor: Clinical and radiological diagnostic challenges. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.jpfa.2017.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Abstract
This article reviews a myriad of common and uncommon odontogenic cysts and tumors. The clinical presentation, gross and microscopic features, differential diagnosis, prognosis, and diagnostic pitfalls are addressed for inflammatory cysts (periapical cyst, mandibular infected buccal cyst/paradental cyst), developmental cysts (dentigerous, lateral periodontal, glandular odontogenic, orthokeratinized odontogenic cyst), benign tumors (keratocystic odontogenic tumor, ameloblastoma, adenomatoid odontogenic tumor, calcifying epithelial odontogenic tumor, ameloblastic fibroma and fibroodontoma, odontoma, squamous odontogenic tumor, calcifying cystic odontogenic tumor, primordial odontogenic tumor, central odontogenic fibroma, and odontogenic myxomas), and malignant tumors (clear cell odontogenic carcinoma, ameloblastic carcinoma, ameloblastic fibrosarcoma).
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Affiliation(s)
- Elizabeth Ann Bilodeau
- Department of Diagnostic Sciences, University of Pittsburgh School of Dental Medicine, G-135 Salk Hall, 3501 Terrace Street, Pittsburgh, PA 15261, USA.
| | - Bobby M Collins
- Department of Surgical Science, East Carolina University School of Dental Medicine, 1851 MacGregor Downs Road, Greenville, NC 27834, USA
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24
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Adenomatoid odontogenic tumor with peripheral cemento-osseous reactive proliferation: report of 2 cases and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:e86-92. [DOI: 10.1016/j.oooo.2015.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 11/30/2015] [Accepted: 12/02/2015] [Indexed: 11/24/2022]
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25
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Erdur EA, Ileri Z, Ugurluoglu C, Cakir M, Dolanmaz D. Eruption of an impacted canine in an adenomatid odontogenic tumor treated with combined orthodontic and surgical therapy. Am J Orthod Dentofacial Orthop 2016; 149:923-7. [DOI: 10.1016/j.ajodo.2016.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 02/01/2016] [Accepted: 02/01/2016] [Indexed: 10/21/2022]
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26
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Bonardi JP, da Costa FH, Matheus RA, Ito FA, Pereira-Stabile CL. Rare presentation of adenomatoid odontogenic tumor in a pediatric patient: a case report. Oral Maxillofac Surg 2016; 20:215-217. [PMID: 26584947 DOI: 10.1007/s10006-015-0537-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 11/15/2015] [Indexed: 06/05/2023]
Abstract
The adenomatoid odontogenic tumor (AOT) is a painless benign tumor with slow growth, usually asymptomatic. It has three variants: follicular, extrafollicular, and peripheral. In the follicular type, the tumor is associated with an impacted tooth, and maxillary canines are the most frequently affected. Association with primary teeth is very rare. Treatment consists essentially in a total lesion enucleation. The objective of this paper is to present the clinical case of a 7-year-old female patient with an adenomatoid odontogenic tumor associated with the crown of the left lower deciduous canine (73), dislodging it to the mandibular base and consequently shifting and also impacting the permanent lower canine (33). The lesion was treated with careful enucleation, preserving the permanent canine, which then had its eruption path released favoring its migration to an ideal position.
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Affiliation(s)
- João Paulo Bonardi
- Department of Surgery and Integrated Clinic, Araçatuba Dental school-UNESP, 1193 José Bonifácio Street, Araçatuba, São Paulo, CEP 16015-050, Brazil.
| | - Fernanda Herrera da Costa
- Department of Oral Medicine and Pediatric Dentistry, State University of Londrina, 540 Pernambuco Street, Londrina, Paraná, CEP 86020-120, Brazil
| | - Ricardo Alves Matheus
- Department of Oral Medicine and Pediatric Dentistry, State University of Londrina, 540 Pernambuco Street, Londrina, Paraná, CEP 86020-120, Brazil
| | - Fabio Augusto Ito
- Department of Oral Medicine and Pediatric Dentistry, State University of Londrina, 540 Pernambuco Street, Londrina, Paraná, CEP 86020-120, Brazil
| | - Cecilia Luiz Pereira-Stabile
- Department of Oral Medicine and Pediatric Dentistry, State University of Londrina, 540 Pernambuco Street, Londrina, Paraná, CEP 86020-120, Brazil
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27
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Belgaumi UI, Parkar MI, Malik NA, Suresh KV, Havewala AM, Bhalinge PM. Follicular Adenomatoid Odontogenic Tumor in Mandible: A Rare Case Report. Ann Med Health Sci Res 2016; 5:469-72. [PMID: 27057389 PMCID: PMC4804662 DOI: 10.4103/2141-9248.177976] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is a relatively rare, benign, hamartomatous, and cystic odontogenic neoplasm that was first described more than a century ago. The lesion still continues to intrigue experts with its varied histomorphology and controversies regarding its development. The present article describes a case of cystic AOT with an unusual histomorphology associated with an impacted 44 in a 21-year-old male.
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Affiliation(s)
- U I Belgaumi
- Department of Oral Pathology and Microbiology, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra, India
| | - M I Parkar
- Department of Oral and Maxillofacial Surgery, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra, India
| | - N A Malik
- Department of Oral and Maxillofacial Surgery, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra, India
| | - K V Suresh
- Department of Oral Medicine and Radiology, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra, India
| | - A M Havewala
- Department of Oral Pathology and Microbiology, Institute of Dental Sciences, S.O.A.S University, Bhubaneswar, Odisha, India
| | - P M Bhalinge
- Department of Oral Pathology and Microbiology, M.A. Rangoonwala College of Dental Sciences and Research Centre, Pune, Maharashtra, India
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28
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Philipsen HP, Khongkhunthiang P, Reichart PA. The adenomatoid odontogenic tumour: an update of selected issues. J Oral Pathol Med 2016; 45:394-8. [PMID: 26865435 DOI: 10.1111/jop.12418] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2015] [Indexed: 11/28/2022]
Abstract
The aim of this update was to present the recent notable progress within remaining questions relating to the adenomatoid odontogenic tumour (AOT). Selected issues that were studied included the following: (i) AOT history and terminology, (ii) the so-called peripheral AOT, (iii) AOT and the gubernaculum dentis and (iv) the so-called adenomatoid odontogenic cyst (AOC). The earliest irrefutable European case of AOT was described in 1915 by Harbitz as 'cystic adamantoma'. Recently, Ide et al. have traced two Japanese cases with irrefutable proof described by Nakayama in 1903. The so-called peripheral (gingival) variant of AOT seems to cover a dual pathogenesis, both an 'erupted intraosseous' and an 'extraosseous' (gingival) one. In 1992, we theorized that the generally unnoticed gubernaculum dentis (cord and canal) seems to be involved in the development of AOT. Ide et al. have concluded that the dental lamina in the gubernacular cord seems to be an embryonic source of the vast majority of AOTs. The suggestion by Marx and Stern to change the nomenclature of AOT to adenomatoid odontogenic cyst (AOC) is critically discussed. The present authors agree on the background of the work of several groups of researchers and WHO/IARC classifications that the biology of the follicular variant of AOT is already fully explained and does not make room for any change in diagnostic terms. Further, there is no reason to change terminology in this case where improvements or conditions to better clinical management are not an issue.
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Affiliation(s)
| | - Pathawee Khongkhunthiang
- Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiangmai University, Chiangmai, Thailand
| | - Peter A Reichart
- Department of Oral Medicine, Dental Radiology and Oral Surgery, CC3, Charité, Berlin, Germany
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29
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Sudhakara M, Rudrayya SP, Vanaki SS, Bhullar RK, Shivakumar MS, Hosur M. Expression of CK14 and vimentin in adenomatoid odontogenic tumor and dentigerous cyst. J Oral Maxillofac Pathol 2016; 20:369-376. [PMID: 27721599 PMCID: PMC5051282 DOI: 10.4103/0973-029x.190904] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background: Origin of adenomatoid odontogenic tumor (AOT) has long been a controversy, and the issue of it being a neoplasm or hamartoma was a subject of debate for a long time. Earlier it was grouped under a mixed group of odontogenic tumors considering the varying degrees of inductive changes. Recently, the WHO classification states that the presence of hard tissue within AOT was not due to induction but was rather a metaplastically produced mineralization and hence the tumor was reclassified under a group of tumors arising from odontogenic epithelium. This study is an attempt to identify if both epithelial (cytokeratin 14 [CK14]) and mesenchymal (vimentin) markers are expressed in the follicular and extrafollicular variants of AOT and to compare the expression with dentigerous cyst (DC) as this cyst is known to arise from reduced enamel epithelium which expressed CK14. This is done to possibly relate the origin of AOT with reduced enamel epithelium. Aims and Objectives: To study, analyze and correlate the expression of CK14 and vimentin in AOT and DC. Materials and Methods: Retrospective study on paraffin embedded tissues. Sixteen cases of AOT and 15 cases of DC were retrieved from the departmental archives and subjected to CK14 and vimentin immunostaining. Statistical Methods: Measures of central tendency was used to analyze the results. Results and Observations: Ninety percent of cases of follicular AOT (FAOT) and 100% cases of extra-follicular AOTs (EAOTs) showed positivity for CK14 and all cases of DC showed positivity for CK14. Vimentin was positive in 44% and negative in 56% cases of both FAOT and EAOT taken together. Conclusion: The CK14 expression profile in AOT and DC supports its odontogenic epithelial specific nature. The possible role of reduced enamel epithelium and dental lamina in histogenesis of AOT and DC is strongly evident by their CK14 expression pattern.
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Affiliation(s)
- Muniswamappa Sudhakara
- Department of Oral Pathology, Krishnadevaraya College of Dental Sciences, Bengaluru, India
| | - S Puranik Rudrayya
- Department of Oral Pathology, PMNM Dental College, Bagalkot, Karnataka, India
| | - Srineevas S Vanaki
- Department of Oral Pathology, PMNM Dental College, Bagalkot, Karnataka, India
| | - RamanPreet Kaur Bhullar
- Department of Oral Pathology, Genesis Institute of Dental Sciences, Ferozepur, Punjab, India
| | - M S Shivakumar
- Department of Oral Pathology, PMNM Dental College, Bagalkot, Karnataka, India
| | - Mahadevi Hosur
- Department of Oral Pathology, PMNM Dental College, Bagalkot, Karnataka, India
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30
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Sethi S, Kumar M, Aggarwal P, Indra Kumar HS, Sugandhi CD, Singh S. A case report and short review on changing trends in the site of occurrence of adenomatoid odontogenic tumor: Unravelling the past 15 years. Dent Res J (Isfahan) 2016; 13:462-471. [PMID: 27857774 PMCID: PMC5091007 DOI: 10.4103/1735-3327.192312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is an uncommon benign odontogenic lesion, with debatable histogenesis and variable histopathology. A systematic and diverse insight into the evolution, clinical presentation, histology, and immunohistochemical findings of this lesion is reviewed and presented. We reviewed the data published from 2000 to 2014 of approximately 255 cases that revealed a significant change in the incidence of predominant site involved, in contrast to the findings published by Reichart. We have also included the chronological order of events leading to the coining of the term AOT, which shows the curiosity that has been dedicated to understanding the lesion. Immunohistochemistry is considered to be a hallmark in pathology for learning the molecular pathogenesis and giving a correct final diagnosis. Several markers have been used to investigate and understand this lesion, and a compilation of the findings has been tabulated.
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Affiliation(s)
- Sneha Sethi
- Department of Oral and Maxillofacial Pathology, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India
| | - Manish Kumar
- Department of Oral and Maxillofacial Pathology, Tatyasaheb Kore Dental College and Research Centre, Kohlapur, Maharashtra, India
| | - Pratul Aggarwal
- Department of Conservative Dentistry and Endodontics, DJ Dental College, Modinagar, Uttar Pradesh, India
| | - H S Indra Kumar
- Department of Prosthodontics, Tatyasaheb Kore Dental College and Research Centre, Kohlapur, Maharashtra, India
| | - Chetan D Sugandhi
- Department of Periodontics, Tatyasaheb Kore Dental College and Research Centre, Kohlapur, Maharashtra, India
| | - Silvie Singh
- Department of Oral Pathology, Tatyasaheb Kore Dental College and Research Centre, Kohlapur, Maharashtra, India
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31
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Kalia V, Kalra G, Kaushal N, Sharma V, Vermani M. Maxillary adenomatoid odontogenic tumor associated with a premolar. Ann Maxillofac Surg 2015; 5:119-22. [PMID: 26389050 PMCID: PMC4555936 DOI: 10.4103/2231-0746.161118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The adenomatoid odontogenic tumor (AOT) represents 3-7% of all odontogenic tumors, and over 750 cases have been reported in the literature. This lesion was formerly considered to be a variant of the ameloblastoma and was designated as adenoameloblastoma. These lesions may infrequently produce dentinoid material and rarely enamel matrix. Consequently, the WHO (2005) classification of odontogenic lesions considered this process to represent a mixed odontogenic neoplasm. We present a case of a 12-year-old female patient with an AOT of diameter 5 cm × 5 cm located in the anterolateral region of the maxilla in association with an impacted premolar tooth. The rarity of AOT, association of this lesion with regards to maxillary premolar, the exaggerated size at presentation, the eruption of the displaced canine postoperatively and uneventful healing of the bony defect without adjunctive therapy makes this case unique.
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Affiliation(s)
- Vimal Kalia
- Department of Oral, Maxillofacial Surgery, BRS Dental College and Hospital, Panchkula, Haryana, India
| | - Geeta Kalra
- Department of Oral, Maxillofacial Surgery, BRS Dental College and Hospital, Panchkula, Haryana, India
| | - Nitin Kaushal
- Department of Pathology, BRS Dental College and Hospital, Panchkula, Haryana, India
| | - Vikas Sharma
- Consultant, Dantantra, H No 731, Sector 2, Panchkula, Haryana, India
| | - Mayank Vermani
- Department of Oral, Maxillofacial Surgery, BRS Dental College and Hospital, Panchkula, Haryana, India
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32
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Rezvani G, Donoghue M, Reichart PA, Pazuhi N. Case Presentation of Concomitant and Contiguous Adenomatoid Odontogenic Tumor and Focal Cemento-Ossifying Dysplasia. Open Dent J 2015; 9:340-5. [PMID: 26464605 PMCID: PMC4598389 DOI: 10.2174/1874210601509010340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/19/2015] [Accepted: 05/25/2015] [Indexed: 12/02/2022] Open
Abstract
A 24 year-old male was presented for the diagnosis of an asymptomatic bony expansion in relation to the right maxillary canine and first premolar. The unilocular radiolucent lesion with central foci of calcification had caused divergence of canine and first premolar roots without any resorption. This case report details a diagnosis of two distinct disease processes of different cellular origin namely, focal cemento-ossifying dysplasia and adenomatoid odontogenic tumor in a previously unreported concomitant and contiguous relationship. The diagnosis was determined by a combination of clinical, radiographic, histopathological and surgical evidence. This case highlights two points, first the need to examine all mixed radiolucent-radiopaque lesions with advanced imaging techniques to assess the number and extent of the lesions prior to treatment planning. Second a likely role of periodontal ligament as the tissue source for odontogenic epithelial cells and mesenchymal stem cells required for the development of odontogenic tumors and cemento-osseous dysplasias.
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Affiliation(s)
- Gita Rezvani
- Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Shahed University, Tehran, Iran
| | | | - Peter A Reichart
- University Professor emeritus, Charité, Department of Oral Medicine, Dental Radiology and Oral Surgery (Prof A.M. Schmidt- Westhausen) CC3, Assmannshauser str. 4-6, 14197, Berlin, Germany
| | - Neda Pazuhi
- Department of Conservative Dentistry, Faculty of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
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33
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Odontogenic tumors in Thailand: A study of 590 Thai patients. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2015. [DOI: 10.1016/j.ajoms.2014.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Adenomatoid Odontogenic Tumor (AOT) Arising from a Dentigerous Cyst: Literature Review and Report of a Case. J Maxillofac Oral Surg 2015. [PMID: 26028864 DOI: 10.1007/s12663-012-0369-3.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is an uncommon benign tumor of odontogenic origin composed of odontogenic epithelium in a variety of histopathological patterns. These lesions are usually solid but are occasionally cystic. AOT has been reported to occur in association with odontogenic cysts. Very few cases have been described that arise in association with a dentigerous cyst. A systematic search of the English-language medical literature in PubMed and Medline search (keywords adenomatoid odontogenic tumor, dentigerous cyst) data bases revealed only ten such cases. The present case is very unique, exceptional and first of this kind that occurred in the posterior mandible associated with an impacted lower first premolar in a 19-year old female patient. The intraosseous follicular AOT, as this case reported here, frequently resemble dentigerous cysts. There is an uncertainty whether the lining of an associated cyst represents a true dentigerous cyst, cystic change within an AOT or may represent a distinct entity. We believe that this case represents an odontogenic cyst with neoplastic change. Hence, in such cases, the final diagnosis should be made on the basis of histological examination of extensive tissue sampling of entire excised tissue specimen. Further studies to determine whether the AOT derived from an odontogenic cyst could represent a distinct variant are to be done.
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Adenomatoid odontogenic tumor—Report of a posterior mandibular case with the presence of ghost cells. J Dent Sci 2015. [DOI: 10.1016/j.jds.2012.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Durga Sreenivas S, Sree Lalita C, Harsha G, Rao CV. Multiple Pathology in a Single Lesion: AOT Associated with Dentigerous Cyst. J Maxillofac Oral Surg 2015; 14:215-21. [PMID: 25838699 PMCID: PMC4379270 DOI: 10.1007/s12663-012-0441-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 09/03/2012] [Indexed: 11/30/2022] Open
Abstract
Odontogenic cysts and tumors are quite common occurrences in jaw bones, although both of them occurring together are rare. The epithelial lining of odontogenic cyst has a potential to transform into neoplastic conditions like squamous cell carcinoma and mucoepidermoid carcinoma, and odontogenic tumors like ameloblastoma and adenomatoid odontogenic tumor. However, the frequency of such cases being encountered is very less. Here, we report a case of adenomatoid odontogenic tumor (AOT) associated with a dentigerous cyst around the crown of an unerupted lateral incisor (follicular variant), in a 14-year-old boy. We also attempt to unravel its mechanism of cytodifferentiation and tumor progression. The origin and nature of such kind of lesions (i.e., independent development of multiple pathologies as a single lesion in a single location, single pathology giving rise to another pathology or a distinct entity/new variant) cannot be explained with certainty at this point of time. The molecular mechanism of tumor development needs to be further elucidated in order to conclude that a different entity called 'hybrid' AOT exists.
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Affiliation(s)
- S. Durga Sreenivas
- Department of Oral and Maxillofacial Surgery, MNR Dental College and Hospital, MNR Nagar, Fasalwadi, Sangareddy 502294 India
| | - C. Sree Lalita
- Department of Oral and Maxillofacial Surgery, MNR Dental College and Hospital, MNR Nagar, Fasalwadi, Sangareddy 502294 India
| | - G. Harsha
- Department of Oral and Maxillofacial Surgery, MNR Dental College and Hospital, MNR Nagar, Fasalwadi, Sangareddy 502294 India
| | - C. Venkateshwara Rao
- Department of Oral and Maxillofacial Surgery, MNR Dental College and Hospital, MNR Nagar, Fasalwadi, Sangareddy 502294 India
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Kawahara K, Nakayama H, Fukuma D, Nagata M, Yoshida R, Tanaka T, Nakagawa Y, Hirosue A, Hiraki A, Takeda Y, Shinohara M. A case of adenomatoid odontogenic tumor-like tumor, unusual benign odontogenic tumor in the maxilla. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2015. [DOI: 10.1016/j.ajoms.2014.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Adenomatoid odontogenic tumor of the mandible with a large calcified mass: Report of a rare case. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY MEDICINE AND PATHOLOGY 2015. [DOI: 10.1016/j.ajoms.2013.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Krishnamurthy K, Balaji RS, Devadiga S, Prasad RGR. Adenomatoid odontogenic tumor in the maxillary antrum: A rare case entity. J Pharm Bioallied Sci 2014; 6:S196-9. [PMID: 25210372 PMCID: PMC4157268 DOI: 10.4103/0975-7406.137468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 04/18/2014] [Accepted: 04/23/2014] [Indexed: 11/17/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is an uncommon benign tumor of odontogenic origin. It occurs in the second decade of life. Females are more commonly affected than males. AOT has a striking tendency to occur in the anterior maxilla; however, very few cases have been reported to occur in the maxillary antrum. This is a case report of a 17-year-old male presented with a large radiolucent lesion associated with the crown of an unerupted canine located in the right maxillary antrum, which was clinically diagnosed as dentigerous cyst. The histopathological examination revealed the presence of AOT.
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Affiliation(s)
- Kavitha Krishnamurthy
- Department of Dentistry, Adichunchanagiri Institute of Medical Sciences, B.G. Nagara, Karnataka, India
| | - Ranjith Singh Balaji
- Department of Dentistry, Adichunchanagiri Institute of Medical Sciences, B.G. Nagara, Karnataka, India
| | - Sumana Devadiga
- Consulting Maxillo-Facial Surgeon, Mangalore, Karnataka, India
| | - Rame Gowda Rajendra Prasad
- Department of Oral and Maxillo Facial Surgery, JSS Dental College, JSS University, Mysore, Karnataka, India
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Moon JW. Extensive Adenomatoid Odontogenic Tumor of the Maxilla: A Case Report of Conservative Surgical Excision and Orthodontic Alignment of Impacted Canine. Maxillofac Plast Reconstr Surg 2014; 36:173-7. [PMID: 27489830 PMCID: PMC4281911 DOI: 10.14402/jkamprs.2014.36.4.173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 05/22/2014] [Accepted: 07/14/2014] [Indexed: 11/30/2022] Open
Abstract
The present report describe the surgical therapy, clinical course, orthodontic treatment and morphological characteristics of an adenomatoid odontogenic tumor in the maxilla of an 11-year-old patient. The cystic tumor filled the maxillary sinus and involved a tooth. Marsupialization was accompanied by partial enucleation and applied traction to the affected tooth by a fixed orthodontic appliance. Healing was uneventful and no local recurrence was observed during a 1-year period of follow-up control.
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Affiliation(s)
- Jee-Won Moon
- Department of Dentistry and Oral and Maxillofacial Surgery, School of Medicine, Catholic University of Daegu
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Dentigerous cyst or adenomatoid odontogenic tumor: clinical radiological and histopathological dilemma. Case Rep Med 2014; 2014:514720. [PMID: 25097553 PMCID: PMC4100378 DOI: 10.1155/2014/514720] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/18/2014] [Accepted: 06/04/2014] [Indexed: 11/17/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is a well-recognised slow growing benign tumor derived from complex system of dental lamina or its remnants. This lesion is categorised into three variants of which the more common variant is follicular type which is often mistaken for dentigerous cyst. We present a case of AOT in a 14-year-old male who was misdiagnosed as dentigerous cyst. Clinical radiological and therapeutic characteristics of the case are commented on in detail.
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Jiang M, You M, Wang H, Xu L. Characteristic features of the adenomatoid odontogenic tumour on cone beam CT. Dentomaxillofac Radiol 2014; 43:20140016. [PMID: 24940808 DOI: 10.1259/dmfr.20140016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To illustrate characteristic features of adenomatoid odontogenic tumour (AOT) on CBCT. METHODS The archived CBCT and panoramic radiographs of eight patients histopathologically diagnosed as AOT were analysed. The radiographic features displayed on both radiographic images were carefully described and compared. RESULTS All eight AOT cases presented as unilocular and well-demarcated lesions on both CBCT and panoramic images. CBCT images displayed three-dimensional interpretation of AOT lesions, especially the detailed intralesional radiopacities. Numerous discrete radiopaque foci scattered in the lesion with evident contrast to the radiolucent background could be considered as one of the characteristic features of AOT on CBCT. CONCLUSIONS Compared with panoramic radiography, CBCT seems to possess better potential in diagnosing AOT.
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Affiliation(s)
- M Jiang
- 1 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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G S, Reddy Y I, P S, Prakash A R. Ameloblastic Fibro-odontome (AFO) of the Mandible: A Case Report. J Clin Diagn Res 2014; 8:260-2. [PMID: 24596790 DOI: 10.7860/jcdr/2014/5402.3942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 11/22/2013] [Indexed: 11/24/2022]
Abstract
Odontoameloblastoma are tumours which represent a histological combination of ameloblastoma and complex odontoma. It behaves in an invasive manner like Ameloblastoma and is more aggressive in nature. We report a new case of ameloblastic fibro-odontoma (AFO). Clinical, radiographic and histopathological features are discussed.
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Affiliation(s)
- Sreenath G
- Senior Lecturer, Department of Oral Pathology, G. Pullareddy Dental College , Kurnool, Andhra Pradesh, India
| | - Indira Reddy Y
- Senior Lecturer, Department of Oral Pathology, G. Pullareddy Dental College , Kurnool, Andhra Pradesh, India
| | - Sreenivasreddy P
- Reader, Department of Oral Surgery, G. Pullareddy Dental College , Kurnool, Andhra Pradesh, India
| | - Ravi Prakash A
- Head of the Department, Department of Oral Pathology, G. Pullareddy Dental College , Kurnool, Andhra Pradesh, India
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Sridevi K, Nandan SRK, Ratnakar P, Srikrishna K, Vamsi Pavani B. Residual cyst associated with calcifications in an elderly patient. J Clin Diagn Res 2014; 8:246-9. [PMID: 24701547 PMCID: PMC3972577 DOI: 10.7860/jcdr/2014/7593.4072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 01/17/2014] [Indexed: 11/24/2022]
Abstract
A residual cyst, as the name implies, is a radicular, lateral periodotal, dentigerous or any other cyst that has persisted after it's associated tooth has been lost. Residual cysts show more predilection in males and they commonly affect the maxillary region. Usually, residual cysts are asymptomatic and calcifications occurring in the residual cysts are quite rare. We are reporting a case of symptomatic residual cyst, associated with calcifications involving the anterior region of the body of the mandible in a 60-year-old male patient. The pathogenesis, clinical, radiological features and differential diagnosis have been discussed.
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Affiliation(s)
- K Sridevi
- Professor, Department of Oral Medicine and Radiology,S.G.T. Dental College, Hospital and Research Institute, Gurgaon, India
| | - S. Ratheesh Kumar Nandan
- Professor, Department of Oral Pathology CKS,Theja Institute of Dental Sciences, Tirupati, Andhra Pradesh, India
| | - P. Ratnakar
- Professor, Department of Oral Medicine and Radiology,Career Post Graduate Institute of Dental Sciences & Hospital, Lucknow, India
| | - K. Srikrishna
- Professor, Department of Oral Medicine and Radiology,Career Post Graduate Institute of Dental Sciences & Hospital, Lucknow, India
| | - B. Vamsi Pavani
- Professor, Department of Oral Medicine and Radiology,Career Post Graduate Institute of Dental Sciences & Hospital, Lucknow, India
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Qari H, Blundell G, Demian N, Covinsky M, Bouquot JE. Massive, mixed, cystic lesion of the mandibular midline. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 118:9-15. [PMID: 24650373 DOI: 10.1016/j.oooo.2014.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 12/24/2013] [Accepted: 01/07/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Hiba Qari
- Department of Diagnostic Sciences, Baylor College of Dentistry, Dallas, TX, USA.
| | - Garrett Blundell
- Department of Oral & Maxillofacial Surgery, University of Texas School of Dentistry at Houston, Houston, TX, USA
| | - Nagi Demian
- Department of Oral & Maxillofacial Surgery, University of Texas School of Dentistry at Houston, Houston, TX, USA
| | - Michael Covinsky
- Department of Pathology & Laboratory Medicine, University of Texas Medical School at Houston, Houston, TX, USA
| | - Jerry E Bouquot
- Department of Diagnostic Sciences, Baylor College of Dentistry, Dallas, TX, USA; Department of Diagnostic & Biomedical Sciences, University of Texas School of Dentistry at Houston, Houston, TX, USA
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Saluja R, Kaur G, Singh P. Aggressive adenomatoid odontogenic tumor of mandible showing root resorption: A histological case report. Dent Res J (Isfahan) 2013; 10:279-82. [PMID: 23946750 PMCID: PMC3731974 DOI: 10.4103/1735-3327.113381] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) is a benign odontogenic tumor with slow but progressive growth. The three variants: Follicular, extra follicular (both central type), and peripheral present with identical histologic findings. This case report describes a patient with a large AOT in the mandible of the extra follicular type which is the less common of the two central types. It also strikes as an unusual case as it shows significant root resorption of the involved displaced teeth which is not generally reported in AOT's.
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Affiliation(s)
- Ramandeep Saluja
- Department of Oral Pathology and Microbiology, Swami Devi Dyal Hospital and Dental College, Barwala, District Panchkula, Haryana, India
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Bhatt R, Dave J, Nalawade TM, Mallikarjuna R. Adenomatoid odontogenic tumour in mandible in a 14-year-old boy. BMJ Case Rep 2013; 2013:bcr2013010287. [PMID: 23839612 PMCID: PMC3736232 DOI: 10.1136/bcr-2013-010287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
A 14-year-old boy reported with a painless swelling over the right anterior mandible with missing right canine tooth. The lesion was diagnosed as 'central follicular adenomatoid odontogenic tumour' and excised surgically under general anaesthesia. The patient was on a year-long clinical and radiographical follow-up.
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Affiliation(s)
- Rohan Bhatt
- Department of Pedodontics and Preventive Dentistry, Karnavati School of Dentistry, Gandhinagar, Gujarat, India
| | - Jay Dave
- Department of Oral Pathology and Microbiology, College of Dental Sciences and Research Centre, Ahmedabad Bopal-Ghuma Road, Manipur, India
| | - Triveni M Nalawade
- Department of Pediatric and Preventive Dentistry, Manubhai Patel Dental College and Hospital, ORI, Vadodara, Gujarat, India
| | - Rachappa Mallikarjuna
- Department of Pedodontics and Preventive Dentistry, K.M. Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India
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Lavanya N, Rajeshwari MRC, Bharathi R, Shaheen A. Peripheral adenomatoid odontogenic tumour - is it really peripheral?: a case report. J Clin Diagn Res 2013; 7:1524-6. [PMID: 23998113 DOI: 10.7860/jcdr/2013/5382.3179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 05/08/2013] [Indexed: 11/24/2022]
Abstract
A Peripheral Adenomatoid Odontogenic Tumour (PAOT) is quite a rare entity which has been infrequently reported in the literature. These uncommon clinical variants of an Adenomatoid Odontogenic Tumour (AOT), typically manifest as a soft tissue mass of the gingiva, which mimick a common epulis, but yet have an identical histopathologic presentation as their intraosseous counterpart. These lesions, though they are indolent in nature, have a tendency to cause well defined deep bony pockets. Only fourteen cases have been adequately documented so far. We are reporting a case of a PAOT of the anterior maxillary gingiva, with a periodontal bone defect in a 12 year old girl. The relevant literature has been briefly reviewed, with an insight into the probable origin of PAOTs with bony defects.
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Affiliation(s)
- N Lavanya
- Formerly Postgraduate Student, Department of Oral and Maxillo Facial Pathology, Tamil Nadu Government dental College and Hospital , Chennai, India
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Narayanan VS, Naidu G, Ragavendra R, Mhaske-Jedhe S, Haldar M. Adenomatoid odontogenic tumor of the mandible with unusual radiographic features: A case report. Imaging Sci Dent 2013; 43:111-5. [PMID: 23807935 PMCID: PMC3691371 DOI: 10.5624/isd.2013.43.2.111] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 12/01/2012] [Accepted: 01/25/2013] [Indexed: 12/02/2022] Open
Abstract
Adenomatoid odontogenic tumor (AOT) usually presents as a unilocular, pericoronal radiolucency in the maxillary anterior region in adolescent females. Very few conditions occur in such a narrow age range and at such a restrictive site. Rarely, these tumors present with varied clinical features. A case of AOT of the mandible is reported with unusual features such as large size, multilocular appearance, and aggressive behavior. The role of radiology in diagnosis of atypical AOT is extremely important. The unique radiological manifestations of the lesion helped in the diagnosis, and it was managed conservatively with no evidence of recurrence.
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Affiliation(s)
- Veena S Narayanan
- Department of Oral Medicine and Radiology, Coorg Institute of Dental Sciences, Virajpet, India
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Lee SK, Kim YS. Current concepts and occurrence of epithelial odontogenic tumors: I. Ameloblastoma and adenomatoid odontogenic tumor. KOREAN JOURNAL OF PATHOLOGY 2013; 47:191-202. [PMID: 23837011 PMCID: PMC3701814 DOI: 10.4132/koreanjpathol.2013.47.3.191] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 04/25/2013] [Indexed: 01/10/2023]
Abstract
Ameloblastomas and adenomatoid odontogenic tumors (AOTs) are common epithelial tumors of odontogenic origin. Ameloblastomas are clinico-pathologically classified into solid/multicystic, unicystic, desmoplastic, and peripheral types, and also divided into follicular, plexiform, acanthomatous, granular types, etc., based on their histological features. Craniopharyngiomas, derived from the remnants of Rathke's pouch or a misplaced enamel organ, are also comparable to the odontogenic tumors. The malignant transformation of ameloblastomas results in the formation of ameloblastic carcinomas and malignant ameloblastomas depending on cytological dysplasia and metastasis, respectively. AOTs are classified into follicular, extrafollicular, and peripheral types. Ameloblastomas are common, have an aggressive behavior and recurrent course, and are rarely metastatic, while AOTs are hamartomatous benign lesions derived from the complex system of the dental lamina or its remnants. With advances in the elucidation of molecular signaling mechanisms in cells, the cytodifferentiation of epithelial tumor cells in ameloblastomas and AOTs can be identified using different biomarkers. Therefore, it is suggested that comprehensive pathological observation including molecular genetic information can provide a more reliable differential diagnosis for the propagation and prognosis of ameloblastomas and AOTs. This study aimed to review the current concepts of ameloblastomas and AOTs and to discuss their clinico-pathological features relevant to tumorigenesis and prognosis.
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Affiliation(s)
- Suk Keun Lee
- Department of Oral Pathology, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
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