1
|
Rather AM, Arunkumar S, Sable MN, Jena AK. Bizarre parosteal osteochondromatous proliferations of the temporal region: a case report. Int J Oral Maxillofac Surg 2024:S0901-5027(24)00064-X. [PMID: 38556432 DOI: 10.1016/j.ijom.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/01/2024] [Accepted: 03/18/2024] [Indexed: 04/02/2024]
Abstract
Bizarre parosteal osteochondromatous proliferations (BPOPs) are distinct clinical-pathological entities that demonstrate combinations of atypical-appearing osseous and chondromatous tissues. These lesions are usually reactive in nature. Histopathologically, 'bizarre' cartilage is a characteristic feature of this lesion. BPOPs usually represent slow-growing painless bony hard protuberances that arise from the surface of affected bone cortices, typically the metacarpals, metatarsals, and phalanges. The occurrence of these lesions in the skull and jaws is sporadic. This case report highlights the clinical presentation, histopathological characteristics, and management of BPOP arising from the supraorbital rim in a 61-year-old female patient.
Collapse
Affiliation(s)
- A M Rather
- Department of Dentistry, AIIMS, Bhubaneswar, Odisha, India.
| | - S Arunkumar
- Department of Neurosurgery, AIIMS, Bhubaneswar, Odisha, India.
| | - M N Sable
- Department of Pathology, AIIMS, Bhubaneswar, Odisha, India.
| | - A K Jena
- Department of Dentistry, AIIMS, Bhubaneswar, Odisha, India.
| |
Collapse
|
2
|
Sabir AB, Julfiqar M, Shoaib SM, Anwer A, Chowdhry M, Adil M. Rare Case of Bizarre Parosteal Osteochondromatous Proliferation of Foot. J Orthop Case Rep 2024; 14:88-92. [PMID: 38420241 PMCID: PMC10898689 DOI: 10.13107/jocr.2024.v14.i02.4228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/09/2023] [Indexed: 03/02/2024] Open
Abstract
Introduction Nora's lesion or bizarre parosteal osteochondromatous proliferation (BPOP) is a rare, benign lesion of small bones of hands and feet in adults. It composed of differing amounts of cartilage, bone, and spindle cells and an unusual form of calcified cartilage so-called "blue bone". Case Report A 23-year-old male presented with swelling at the lateral side of the fifth toe of his right foot, which was separated from the adjacent toe. Radiographs showed a mass arising from the proximal phalanx of the little toe, with no medullary and cortical continuity. Excisional biopsy of the mass was performed, and a histologic diagnosis of BPOP of bone (Nora's lesion) was made. Conclusion This case presented with a cartilaginous cap around tumor which is suggestive for benign nature of this tumor with some histological variation from bizarre variant along with no recurrence which is unlikely seen in BPOP.
Collapse
Affiliation(s)
- Amir Bin Sabir
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Julfiqar
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Syed Mohd Shoaib
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Adnan Anwer
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Madhav Chowdhry
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohd Adil
- Department of Orthopaedic Surgery, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| |
Collapse
|
3
|
Theodorou DJ, Theodorou SJ, Kakitsubata Y. Nora Lesion (Bizarre Parosteal Osteochondromatous Proliferation): An Ultrasound Diagnosis with Magnetic Resonance Imaging Correlation. J Med Ultrasound 2023; 31:327-330. [PMID: 38264603 PMCID: PMC10802862 DOI: 10.4103/jmu.jmu_53_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/28/2022] [Accepted: 11/04/2022] [Indexed: 01/25/2024] Open
Abstract
Advanced cross-sectional imaging techniques are firmly established as a means of evaluating musculoskeletal disease, and ultrasound (US) is increasingly being used for the assessment of a diversity of tendon, joint, and soft-tissue abnormalities. A benign condition - bizarre parosteal osteochondromatous proliferation (BPOP) - arises from the periosteum, typically in the small bones of the hands and feet, and grows as a surface bone lesion in the surrounding soft tissue. Proliferations can become symptomatic, exercising mass effect on adjacent structures that may require operative management. As a bone-forming process, BPOP may occasionally assume worrisome histologic features that mimic sarcoma, and a pronounced tendency to recur after primary excision. A solitary mass was growing in the middle finger of a young woman that curtailed proper hand function. With US, a partially ossified formation was revealed in the proximal phalanx situated on the outer surface of the bone. There was faint acoustic shadowing distal to the lesion, and a hypoechoic halo was seen covering part of the abnormal tissue growth. Importantly, the lesion caused significant limitation of motion of the finger, on the dynamic flexion US images with the displacement of the flexor tendon and compression of a digital nerve. To restore the range of motion in the finger, surgical excision of the juxtacortical mass was performed and histology yielded a diagnosis of BPOP. We describe the US features of digital BPOP, which were found to correspond closely to those of computed tomography and magnetic resonance imaging.
Collapse
Affiliation(s)
| | | | - Yousuke Kakitsubata
- Department of Radiology, Miyazaki Konan Hospital, Otsubo-Nishi, Miyazaki, Japan
| |
Collapse
|
4
|
Gitto S, Serpi F, Messina C, Albano D, Di Bernardo A, Armiraglio E, Cannavò L, Mazzoli S, Luzzati A, Parafioriti A, Sconfienza LM. Bizarre parosteal osteochondromatous proliferation: an educational review. Insights Imaging 2023; 14:109. [PMID: 37336832 DOI: 10.1186/s13244-023-01455-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/03/2023] [Indexed: 06/21/2023] Open
Abstract
Bizarre parosteal osteochondromatous proliferation (BPOP) is a surface-based bone lesion belonging to the group of benign chondrogenic tumors. The aim of this review is to familiarize the readers with imaging features and differential diagnosis of BPOP, also addressing pathological presentation and treatment options. The peak of incidence of BPOP is in the third and fourth decades of life, although it can occur at any age. Hands are the most common location of BPOP (55%), followed by feet (15%) and long bones (25%). On imaging, BPOP appears as a well-marginated mass of heterotopic mineralization arising from the periosteal aspect of the bone. Typical features of BPOP are contiguity with the underlying bone and lack of cortico-medullary continuity, although cortical interruption and medullary involvement have been rarely reported. Histologically, BPOP is a benign bone surface lesion characterized by osteocartilaginous proliferation with disorganized admixture of cartilage with bizarre features, bone and spindle cells. Differential diagnosis includes both benign-such as florid reactive periostitis, osteochondroma, subungual exostosis, periosteal chondroma and myositis ossificans-and malignant lesions-such as periosteal chondrosarcoma and surface-based osteosarcoma. Treatment consists of surgical resection. Local recurrences are common and treated with re-excision.Critical relevance statement Bizarre parosteal osteochondromatous proliferation is a benign mineralized mass arising from the periosteal aspect of bone cortex. Multi-modality imaging characteristics, pathology features and differential diagnosis are here highlighted to familiarize the readers with this entity and offer optimal patient care.
Collapse
Affiliation(s)
- Salvatore Gitto
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
| | - Francesca Serpi
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
| | - Carmelo Messina
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
| | - Domenico Albano
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
| | | | | | - Luca Cannavò
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
| | - Simone Mazzoli
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
| | - Alessandro Luzzati
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy
| | | | - Luca Maria Sconfienza
- IRCCS Istituto Ortopedico Galeazzi, via Cristina Belgioioso 173, 20157, Milan, Italy.
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.
| |
Collapse
|
5
|
Kao YC, Yoshida A, Hsieh TH, Nord KH, Saba KH, Ichikawa H, Tsai JW, Huang HY, Chih-Hsueh Chen P, Fletcher CDM, Lee JC. Identification of COL1A1/2 Mutations and Fusions With Noncoding RNA Genes in Bizarre Parosteal Osteochondromatous Proliferation ( Nora Lesion). Mod Pathol 2023; 36:100011. [PMID: 36853784 DOI: 10.1016/j.modpat.2022.100011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/14/2022] [Accepted: 09/16/2022] [Indexed: 01/11/2023]
Abstract
Bizarre parosteal osteochondromatous proliferation (BPOP) (Nora lesion) is a benign bone surface lesion, which most commonly occurs in the digits of young patients and has a high rate of recurrence. Histologically, it is composed of a mixture of disorganized bone, cartilage, and spindle cells in variable proportions and characterized by amorphous "blue bone" mineralization. Recurrent chromosomal abnormalities, including t(1;17)(q32-42;q21-23) and inv(7)(q21.1-22q31.3-32), have been reported in BPOP. However, the exact genes involved in the rearrangements remain unknown. In this study, we analyzed 8 BPOP cases affecting the fingers, toe, ulna, radius, and fibula of 5 female and 3 male patients, aged 5 to 68 years. RNA sequencing of 5 cases identified genetic fusions between COL1A2 and LINC-PINT in 3 cases and COL1A1::MIR29B2CHG fusion in 1, both validated using fluorescence in situ hybridization and reverse transcription (RT)-PCR. The remaining fusion-negative case harbored 3 COL1A1 mutations as revealed by whole-exome sequencing and confirmed using Sanger sequencing. All these genetic alterations were predicted to cause frameshift and/or truncation of COL1A1/2. The chromosomal locations of COL1A2 (7q21.3), LINC-PINT (7q32.3), COL1A1 (17q21.33), and MIR29B2CHG (1q32.2) were consistent with the breakpoints identified in the previous cytogenetic studies. Subsequent screening of 3 BPOPs using fluorescence in situ hybridization identified 1 additional case each with COL1A1 or COL1A2 rearrangement. Our findings are consistent with reported chromosomal abnormalities and implicate the disruption of type I collagen, and perhaps of either noncoding RNA gene as a tumor suppressor, in the tumorigenesis of BPOP. The prevalence and tumorigenic mechanisms of these COL1A1/2 alterations in BPOP require further investigation.
Collapse
Affiliation(s)
- Yu-Chien Kao
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Tsung-Han Hsieh
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Karolin H Nord
- Department of Laboratory Medicine, Division of Clinical Genetics, Lund University, Lund, Sweden
| | - Karim H Saba
- Department of Laboratory Medicine, Division of Clinical Genetics, Lund University, Lund, Sweden
| | - Hitoshi Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Jen-Wei Tsai
- Department of Pathology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Hsuan-Ying Huang
- Department of Anatomical Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | | | | | - Jen-Chieh Lee
- Department and Graduate Institute of Pathology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.
| |
Collapse
|
6
|
Edoardo I, Elisa F, Damiano RA, Silvia DF, Rodolfo C, Lorenzo A. Bizarre Parosteal Osteochondromatous Proliferation ( Nora Lesion): A Narrative Review. Acta Med Litu 2022; 29:176-193. [PMID: 37733437 PMCID: PMC9799002 DOI: 10.15388/amed.2022.29.2.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/27/2022] [Accepted: 04/29/2022] [Indexed: 11/22/2022] Open
Abstract
Background Bizarre parosteal osteochondromatous proliferation (BPOP), or Nora lesion, is a rare proliferative disease arising from the parosteal region of bones. Although BPOP's pathogenesis is still not certain, modern literature suggests it to be a tumor-like lesion or even a benign neoplasm. Due to the extremely low incidence, to this date studies on the topic are limited to case reports and a few case series. This narrative review aims to resume literature on BPOP and provide an overview of its natural history, morphologic characteristics and prognostic horizon. Materials and methods A systematic research of the literature was done to identify studies reporting on patients who suffered from BPOP between 1983 and 2021. We collected data regarding aetiologic and pathogenetic theories, patients' personal data and anamnesis, lesions' location, clinical presentation, imaging features, pathological appearance, treatment and prognosis. Results We identified 322 cases of BPOP with a mean age of 34.3 years at the moment of diagnosis. There was no gender difference. The most involved site was the hand, followed by the foot. A history of trauma was reported for 14.7% of the cases. 38.7% of the patients had pain. Literature defined typical radiographic and microscopic patterns that characterize Nora lesions. While imaging is fundamental to orientate towards BPOP, histological evaluation is mandatory to get the definitive diagnosis. To this date, only reliable therapeutic option is represented by surgical resection. BPOP is burdened by a risk of recurrence that accounts to 37.4%. Conclusion BPOP is a rare benign disease that should be considered during the differential diagnosis of parosteal lesions, especially in the acral regions. Careful diagnostic evaluations are necessary to get the correct diagnosis and wide margins of resection are recommended to minimize the relatively high risk of local recurrence.
Collapse
Affiliation(s)
- Ipponi Edoardo
- University of Pisa: Department of Orthopedics and Trauma Surgery
| | - Ferrari Elisa
- University of Pisa: Department of Orthopedics and Trauma Surgery
| | | | - De Franco Silvia
- University of Pisa: Department of Orthopedics and Trauma Surgery
| | - Capanna Rodolfo
- University of Pisa: Department of Orthopedics and Trauma Surgery
| | - Andreani Lorenzo
- University of Pisa: Department of Orthopedics and Trauma Surgery
| |
Collapse
|
7
|
Martínez Álvarez S, Azorín Cuadrillero DL, Little KJ. Bizarre Parosteal Osteochondromatous Proliferation ( Nora Lesion) in Pediatric Phalanges. J Hand Surg Am 2021; 46:344.e1-344.e9. [PMID: 32611484 DOI: 10.1016/j.jhsa.2020.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 04/05/2020] [Accepted: 05/12/2020] [Indexed: 02/02/2023]
Abstract
Bizarre parosteal osteochondromatous proliferation, or Nora tumor, is an uncommon lesion affecting the tubular bones of the hands and feet. Normally arising from the cortical surface and periosteum of these bones, these lesions histologically consist of a hypercellular cartilaginous cap covering a bony stalk that is surrounded by ossified areas and spindle cell stroma. The differential diagnosis includes conditions involving the periosteum such as chondrosarcoma, parosteal osteosarcoma, osteochondroma, turret exostosis, and florid reactive periostitis. The only effective treatment is wide surgical excision; nevertheless, local recurrence rates are extremely high and may necessitate revision surgery. In the present study, we report 3 cases of Nora lesion located in the hand in pediatric patients. The diagnosis in these cases was challenging owing to their presenting symptoms and radiographic findings. The diagnosis was made based on characteristic findings noted on the radiographic images and was confirmed by histological examination following excision.
Collapse
Affiliation(s)
- Sergio Martínez Álvarez
- Cirugía Ortopédica y Traumatología, Hospital Universitario Infantil Niño Jesús, Madrid, Spain
| | | | - Kevin J Little
- Associate Professor for Orthopaedic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH; Cirugía Ortopédica y Traumatología, Hospital Universitario Infantil Niño Jesús, Madrid, Spain.
| |
Collapse
|
8
|
Sergot LM, Andronikou S, Thomas S. A 4-year-old with a non-tender dorsal phalangeal lump. Skeletal Radiol 2018; 47:389-390. [PMID: 29101424 DOI: 10.1007/s00256-017-2804-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | - Savvas Andronikou
- Department of Paediatric Radiology, University of Bristol, Bristol, England
- Bristol Royal Hospital for Children, Bristol, England
| | - Simon Thomas
- Bristol Royal Hospital for Children, Bristol, England
| |
Collapse
|