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Malutan AM, Suciu VE, Ignat FL, Diculescu D, Ciortea R, Boțan EC, Bucuri CE, Roman MP, Nati I, Ormindean C, Mihu D. Tailgut Cyst-Gynecologist's Pitfall: Literature Review and Case Report. Diagnostics (Basel) 2025; 15:108. [PMID: 39795636 PMCID: PMC11719731 DOI: 10.3390/diagnostics15010108] [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: 12/04/2024] [Revised: 12/23/2024] [Accepted: 01/02/2025] [Indexed: 01/13/2025] Open
Abstract
Background and Clinical Significance: Retrorectal cystic hamartomas ("Tailgut cysts") are rare developmental cysts that appear in the retrorectal space, arising from aberrant remnants of the post-anal primitive gut in case of an incomplete embryogenetic involution. Case Presentation: We present the case of a 30-year-old woman with a history of chronic lower abdominal pain. Other digestive symptoms, like rectal fullness, constipation, pain on defecation, rectal bleeding or genitourinary obstruction symptoms, were not associated. During a period of 3 years, she underwent several surgical procedures for ovarian cysts, without relieving the symptomatology. A computed tomography (CT) scan showed a presacral tumor with a right pararectal development. A surgical resection of the lesion using an anterior approach was performed, with the final pathological diagnosis of a retrorectal cystic hamartoma ("tailgut cyst"). Conclusions: This case underlines the fact that retrorectal masses can be challenging to diagnose, and tailgut cysts must be taken into consideration in cases of perirectal tumors in patients with a history of multiple failed procedures and surgeries.
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Affiliation(s)
- Andrei Mihai Malutan
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Viorela-Elena Suciu
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | | | - Doru Diculescu
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Razvan Ciortea
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Emil-Claudiu Boțan
- Department of Pathology, Emergency County Hospital, 3-5 Clinicilor, 400006 Cluj-Napoca, Romania
| | - Carmen Elena Bucuri
- Clinical Department of Surgery, “Constantin Papilian” Emergency Clinical Military Hospital, 22 G-ral Traian Mosoiu, 400132 Cluj-Napoca, Romania
| | - Maria Patricia Roman
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Ionel Nati
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Cristina Ormindean
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
| | - Dan Mihu
- 2nd Department of Obstetrics and Gynecology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania; (A.M.M.)
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Karn S, Huda F, David LE, Sharma J, Prajapati T, Chauhan U, Singh SK, Basu S. Recurrent retrorectal tailgut cyst mimicking deep pelvic abscess: A diagnostic dilemma. Radiol Case Rep 2022; 17:2559-2562. [PMID: 35634015 PMCID: PMC9130079 DOI: 10.1016/j.radcr.2022.04.041] [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: 03/20/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 11/01/2022] Open
Abstract
Tailgut cysts are congenital anomalies that are rare and arise from incompletely regressed primitive hindgut. These are more commonly found in women and are usually asymptomatic. When symptoms develop, these can present with pain, infection, hemorrhage, difficulty in defecation, and rarely malignant change. We report a middle-aged married woman who presented with deep-seated perineal pain for a couple of months, which increased during defecation and sexual intercourse. Although abdominal examination was unremarkable barring deep tenderness in the hypogastrium, rectal and vaginal examinations suggested a tender pelvic swelling. An abdominal ultrasonographic examination diagnosed a cystic swelling in the pelvis extending until the Levator ani muscles. Considering her symptoms, a pelvic abscess was diagnosed and transvaginal drainage was done. Due to persistence of symptoms and recurrence after a month, she was further investigated and was diagnosed to have a presacral benign cystic tumor based on CT and MRI scans of the pelvis. The lesion was completely excised through a combined abdomino-perineal approach and histopathological report suggested a benign tailgut cyst. That a cystic presacral swelling with features of inflammation can be confused with a deep pelvic abscess is hereby highlighted in this report. An MRI scan is diagnostic of these lesions. Failure to differentiate it from a pelvic abscess may result in drainage, which may be of concern if the lesion is malignant.
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Affiliation(s)
- Summi Karn
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Farhanul Huda
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Lena Elizabath David
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Jyoti Sharma
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Tripti Prajapati
- Department of Radiodiagnosis & Imaging, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Udit Chauhan
- Department of Radiodiagnosis & Imaging, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Sudhir Kumar Singh
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
| | - Somprakas Basu
- Department of General Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand 249203, India
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Broccard SP, Colibaseanu DT, Behm KT, Mishra N, Davis P, Maimone KL, Mathis KL, Stocchi L, Dozois EJ, Merchea A. Risk of malignancy and outcomes of surgically resected presacral tailgut cysts: A current review of the Mayo Clinic experience. Colorectal Dis 2022; 24:422-427. [PMID: 34941020 DOI: 10.1111/codi.16030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/11/2021] [Accepted: 12/01/2021] [Indexed: 02/08/2023]
Abstract
AIM The aim of this study was to describe the surgical management, outcomes and risk of malignancy of presacral tailgut cysts. METHOD A retrospective analysis of all patients who underwent resection of tailgut cyst at Mayo Clinic in Arizona, Florida and Minnesota between 2008 and 2020 was performed. Demographics, presentation, evaluation, surgical approach, postoperative complications, pathology and recurrence rates were reviewed. RESULTS Seventy-three patients were identified (81% female) with a mean age of 45 years. Thirty-nine patients (53%) were symptomatic, most commonly with pelvic pain (26 patients). Digital rectal examination identified a palpable mass in 68%. Mean tumour size was 6 cm. Resection was primarily performed through a posterior approach (77%, n = 56), followed by a transabdominal approach (18%, n = 13) and a combined approach (5%, n = 4). Six patients underwent a minimally invasive resection (laparoscopic/robotic). Coccygectomy or distal sacrectomy was performed in 41 patients (56%). Complete resection was achieved in 94% of patients. Thirty-day morbidity occurred in 18% and was most commonly wound related; there was no mortality. Malignancy was identified in six patients (8%). For the 30 patients with follow-up greater than 1 year, the median follow-up was 39 months (range 1.0-11.1 years). Local recurrence was identified in three patients and distant metastatic disease in one patient. CONCLUSION The rate of malignancy in presacral tailgut cysts based on this current review was 8%. Overall recurrence was 5% at a median of 24 months.
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Affiliation(s)
- Sacha P Broccard
- Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Dorin T Colibaseanu
- Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Kevin T Behm
- Division of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Nitin Mishra
- Division of Colon and Rectal Surgery, Mayo Clinic, Scottsdale, Arizona, USA
| | - Peter Davis
- Division of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Kristi L Maimone
- Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Kellie L Mathis
- Division of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Luca Stocchi
- Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Eric J Dozois
- Division of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Amit Merchea
- Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, USA
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Kardoun N, Hadrich Z, Akrout A, Harbi H, Boujelben S, Mzali R. Tailgut cyst: 2 case reports. Clin Case Rep 2021; 9:e04490. [PMID: 34295496 PMCID: PMC8283855 DOI: 10.1002/ccr3.4490] [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: 05/06/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 02/02/2023] Open
Abstract
Tailgut cysts, or retrorectal cystic hamartomas, are rare congenital developmental lesions. It is a benign lesion, but there is a risk of degeneration, so surgical resection is necessary.
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Affiliation(s)
- Nizar Kardoun
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
| | - Zied Hadrich
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
| | - Amira Akrout
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
| | - Houssem Harbi
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
| | - Salah Boujelben
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
| | - Rafik Mzali
- Departement of SurgeryHabib Bourguiba HospitalSfaxTunisia
- Faculty of Médecine of SfaxSfaxTunisia
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Ujaimi R. Adenocarcinoma in a Recurrent Retrorectal Cyst: A Case Report. Int Med Case Rep J 2021; 14:223-228. [PMID: 33854384 PMCID: PMC8039191 DOI: 10.2147/imcrj.s294090] [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: 12/14/2020] [Accepted: 03/11/2021] [Indexed: 11/25/2022] Open
Abstract
I present a case of an adenocarcinoma in a retrorectal cyst in a 63-year-old female with a prior history of a congenital cyst excised as a newborn. The patient had a resection with positive margins, followed by chemotherapy and radiotherapy at progression. Her disease did not respond to chemotherapy or radiotherapy and she died with systemic manifestations related to her disease 28 months after diagnosis.
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Affiliation(s)
- Reem Ujaimi
- Department of Radiology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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Liang F, Li J, Yu K, Zhang K, Liu T, Li J. Tailgut Cysts with Malignant Transformation: Features, Diagnosis, and Treatment. Med Sci Monit 2020; 26:e919803. [PMID: 31926113 PMCID: PMC6977638 DOI: 10.12659/msm.919803] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A tailgut cyst is a type of benign congenital disease that mainly develops in the retro-rectal space. However, malignant transition can occur in some cases of tailgut cysts. Early and precise diagnosis, and proper treatment, are vital for patients with tailgut cysts with malignant transformation. In this review, we aim to summarize the similarities and differences in the diagnosis and treatment methods among the 3 most frequently reported types of tailgut cysts with malignant transformation. In our study, PubMed and Web of Science databases were used to search for the studies and the key words were “tailgut cysts” and “malignancy”. We found 176 articles and selected 75 articles in our survey, with 9 reviews, 35 case reports, and 31 case reports and reviews.
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Affiliation(s)
- Feng Liang
- Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Jian Li
- Department of Pathology, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Ke Yu
- Operating Theater and Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Kai Zhang
- Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Tongjun Liu
- Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Jiannan Li
- Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
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Nicoll K, Bartrop C, Walsh S, Foster R, Duncan G, Payne C, Carden C. Malignant transformation of tailgut cysts is significantly higher than previously reported: systematic review of cases in the literature. Colorectal Dis 2019; 21:869-878. [PMID: 30932326 DOI: 10.1111/codi.14628] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 03/16/2019] [Indexed: 02/08/2023]
Abstract
AIM The best treatment for tailgut cysts has not been firmly established. We report a systematic review of the cases in the available literature in order to provide an evidence base for treatment. METHOD A systematic search of articles wholly or partly in English was made of PubMed, Embase and Google Scholar; additional studies were discovered by searching reference lists and contacting authors directly. Search terms 'tailgut cyst', 'tail gut cyst', 'retrorectal hamartoma' and 'retrorectal tumour' were used for case reports or case series; no publication date restrictions were imposed. Only studies with histological confirmation of diagnosis and reporting the age and gender of patients were included. Papers were excluded by consensus between the first two authors. RESULTS A total of 196 individual cases were analysed in detail including 51 cases of neoplasia. The overall rate of neoplastic transformation was 26.6%. Although the male:female cyst incidence ratio was 1:4, men over 18 had a significantly greater relative risk of neoplasm at 1.94 (P = 0.0055). Radiological evidence of nodular thickening of the cyst wall significantly increased the relative risk of the presence of cancer (P = 0.0023). CONCLUSIONS Current orthodoxy that these are not dangerous embryological remnants is unfounded and may be false. The available data suggest the risk of malignant transformation is high and will apply to any residual tissue after excision. The same rationale behind total mesorectal excision in rectal cancer applies to tailgut cysts. Consequently they should be resected with similar oncological margins.
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Hufkens AS, Cools P, Leyman P. Tailgut cyst: report of three cases and review of the literature. Acta Chir Belg 2019; 119:110-117. [PMID: 30776969 DOI: 10.1080/00015458.2017.1353758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Tailgut cysts or retrorectal cystic hamartomas are congenital developmental lesions which are often misdiagnosed due to their rare incidence, anatomical position and variable clinical presentation. CASE REPORT We report three clinical cases: one of a 67-year old woman with high fever and anal bulging; the second case was a 50-year old woman with diffuse abdominal pain and the third case was a 52-year old woman with high fever and no abdominal or rectal pain. The rectal examination and MRI indicated the presence of a tailgut cyst. In all the cases a complete resection through a posterior perineal route was performed. Histopathological examination confirmed the diagnosis of a tailgut cyst, with a malignant component identified in the third case. DISCUSSION The discussion presents a brief review of the relevant information described in the literature to highlight the cornerstones for appropriate diagnosis and treatment of a tailgut cyst. Tailgut cysts are to be considered in the differential diagnosis of retrorectal or presacral masses as malignant transformation can occur.
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Affiliation(s)
- Ann-Sophie Hufkens
- Department of General and Abdominal Surgery, GZA Hospitals, Campus Sint-Vincentius, Antwerp, Belgium
| | - Peter Cools
- Department of General and Abdominal Surgery, GZA Hospitals, Campus Sint-Vincentius, Antwerp, Belgium
| | - Paul Leyman
- Department of General and Abdominal Surgery, GZA Hospitals, Campus Sint-Augustinus, Wilrijk, Belgium
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Seydafkan S, Shibata D, Sanchez J, Tran ND, Leon M, Coppola D. Pathology Report: Presacral Noncommunicating Enteric Duplication Cyst. Cancer Control 2017; 23:170-4. [PMID: 27218796 DOI: 10.1177/107327481602300213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Gastrointestinal (GI) tract duplication cysts or enteric duplication cysts are rare congenital malformations sometimes found on the mesenteric aspect of segments of the alimentary tract. Enteric duplication cysts are lined by normal GI epithelium and may be classified as foregut, mid-gut, and hindgut cysts. Except in very rare cases of retroperitoneal enteric duplication cysts, these cysts communicate with the GI tract and share a common blood supply. Concurrent congenital malformations are not uncommon and malignant transformation within enteric duplication cysts has also been reported. METHODS We describe a case of a noncommunicating enteric duplication cyst in a 52-year-old woman. RESULTS The patient presented with a presacral cystic mass requiring frequent drainage procedures that was primarily believed to be of neural origin. Upon resection, the lesion contained heterotopic tissue, including ciliated bronchial epithelium, squamous and transitional epithelia, and pancreatic and gastric tissue. Focal, low-grade intestinal adenoma was present, but malignancy was not detected in this case. CONCLUSION To our knowledge, this is the sixth reported case of a noncommunicating enteric duplication cyst in the English medical literature.
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Affiliation(s)
- Shabnam Seydafkan
- Department of Anatomic Pathology, Moffitt Cancer Center, Tampa, FL 33612, USA.
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Lee JH, Lee YS, Shim SY, Cho SJ, Park EA, Chung SS, Park S. Tailgut Cyst in a Neonate: A Case Report. J Pathol Transl Med 2016; 50:315-7. [PMID: 27048241 PMCID: PMC4963966 DOI: 10.4132/jptm.2015.11.27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/25/2015] [Accepted: 11/27/2015] [Indexed: 12/23/2022] Open
Affiliation(s)
- Ji Hyen Lee
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Yun Suk Lee
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - So Yeon Shim
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Su Jin Cho
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Eun Ae Park
- Department of Pediatrics, Ewha Womans University School of Medicine, Seoul, Korea
| | - Soon Sup Chung
- Department of Surgery, Ewha Womans University School of Medicine, Seoul, Korea
| | - Sanghui Park
- Department of Pathology, Ewha Womans University School of Medicine, Seoul, Korea
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Abstract
Retrorectal cystic hamartoma, also known as tailgut cyst, is a rare congenital developmental lesion arising from postnatal primitive gut remnants in the retrorectal space. The rarity of the lesion and its anatomical position usually leads to difficulty in diagnosis and surgical management. This cyst predominantly occurs in women (female to male ratio, 3:1). Tailgut cysts can present as incidental findings during the routine examination but over half of the patients are thought to present with symptoms. Computed tomography or magnetic resonance imaging has a crucial role in diagnosing these misdiagnosed cysts. Complete surgical excision is the treatment of choice for tailgut cysts as this provides a definitive diagnosis, relieves symptoms, and prevents possible complications such as infection, fistula formation, and malignant degeneration. We present a case of a 40-year-old female, who presented to us with lower back swelling (7 cm × 5 cm) for last 2 years, which had become more prominent to her while sitting. The patient was investigated. Ultrasonography demonstrated ill-defined large cystic lesion (8 cm × 7 cm), posterior to the uterus. Fine needle aspiration cytology suggested sebaceous cyst. A lumbosacral contrast-enhanced computed tomography demonstrated well-defined fluid density mass/collection with enhancing walls in the retrorectal, presacral, precoccygeal area, and suggested tailgut duplication cyst/retrorectal cystic hamartoma. Surgical complete excision of the cystic mass was done with both anterior (transabdominal) and posterior approach. Histopathology confirmed a tailgut cyst.
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Affiliation(s)
- Prem Chand
- Department of General Surgery, Government Medical College, Patiala, Punjab, India
| | - Simmi Bhatnagar
- Department of Radiodiagnosis, Government Medical College, Patiala, Punjab, India
| | - Ashok Kumar
- Department of General Surgery, Government Medical College, Patiala, Punjab, India
| | - Nisha Rani
- Department of General Surgery, Government Medical College, Patiala, Punjab, India
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Shetty AS, Loch R, Yoo N, Mellnick V, Fowler K, Narra V. Imaging of tailgut cysts. ACTA ACUST UNITED AC 2015; 40:2783-95. [PMID: 26017036 DOI: 10.1007/s00261-015-0463-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Vinciguerra GLR, Mercantini P, La Torre M, Pilozzi E, Ziparo V, Vecchione A. Transitional cell carcinoma of the retrorectal space arisen in tailgut cyst: a case report and review of the literature. Int J Surg Pathol 2013; 22:280-5. [PMID: 23816825 DOI: 10.1177/1066896913491324] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tailgut cysts, also known as retrorectal cystic hamartomas, are congenital lesions derived by an abnormal remnant of the postanal primitive hindgut, consisting of unilocular or multilocular cysts usually lined by squamous, transitional, or glandular epithelium. Malignant transformation is an uncommon event, and it mainly involves the neuroendocrine or glandular epithelium; other histotypes are sporadic. Here, we report, for the first time, the clinicopathological features of a transitional cell carcinoma that arose in a tailgut cyst.
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