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Dnyanmote AS, Jadhav S, Vasava K, Immadi S. Anorectal Melanoma: A Rare Cause of Large Bowel Obstruction. Cureus 2024; 16:e56128. [PMID: 38618462 PMCID: PMC11015112 DOI: 10.7759/cureus.56128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2024] [Indexed: 04/16/2024] Open
Abstract
Anorectal melanoma is a rare and aggressive malignancy with a challenging diagnosis and management. We present the case of a 69-year-old male with a history of chronic constipation and recent weight loss, who presented with symptoms suggestive of anorectal pathology. Despite initial diagnostic challenges, including an unsuccessful colonoscopy due to inadequate bowel preparation, the subsequent radiographic evaluation revealed a large bowel obstruction secondary to a protruding anorectal mass. Abdominal X-ray demonstrated significant colonic dilation while contrast-enhanced CT scan revealed a large hypodense mass protruding from the anal canal. Surgical intervention led to the excision of the mass, and histopathological examination confirmed malignant melanoma. Immunohistochemistry markers, including HMB 45, Melan A, and S100, supported the diagnosis. This case underscores the importance of considering anorectal melanoma in patients presenting with atypical anorectal symptoms, despite its rarity. Early recognition and intervention, supported by appropriate imaging modalities, are critical for optimizing patient outcomes in such cases.
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Affiliation(s)
- Anuradha S Dnyanmote
- Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, IND
| | - Suhasini Jadhav
- General Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, IND
| | - Kinjal Vasava
- General Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, IND
| | - Saikumar Immadi
- General Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, IND
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Elouali I, Imrani K, Berrada K, Zahi H, Jahid A, Moatassim Billah N, Nassar I. Primitive rectal melanoma: A rare case report. SAGE Open Med Case Rep 2023; 11:2050313X231194150. [PMID: 37654557 PMCID: PMC10467173 DOI: 10.1177/2050313x231194150] [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: 05/21/2023] [Accepted: 07/26/2023] [Indexed: 09/02/2023] Open
Abstract
Mucosal melanoma is a rare subtype of melanoma distinct from the cutaneous type in its clinical and biological aspects, requiring different therapeutical management. Anorectal melanomas represent less than 1% of anorectal cancers and 0.3% of malignant melanomas, and they are by far the most studied type. Proctologic examination, colonoscopy, and biopsy can establish a correct diagnosis. Imaging techniques, especially MRI can show some characteristic features, but it is essentially performed for extension assessment. We report the case of a 63-year-old man who consulted for rectal bleeding. The proctological examination found a brownish ulcerative-vegetating tumor of 3 cm in diameter located 3 cm from the anal rim. The endoscopic examination revealed a predominance of ulcerative budding lesions and the biopsy specimen confirmed a rectal melanoma. The extension assessment, based on a computed tomography scan and MRI did not show locoregional or distant metastases. Radiotherapy and abdominoperineal resection with pelvic node dissection was the treatment of choice with good evolution.
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Affiliation(s)
- Ibtissam Elouali
- Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco
| | - Kawtar Imrani
- Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco
| | - Kenza Berrada
- Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco
| | - Hiba Zahi
- Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco
| | - Ahmed Jahid
- Histopathology Department, IBN SINA University Hospital V, Rabat, Morocco
| | | | - Ittimade Nassar
- Central Radiology Department, IBN SINA University Hospital V, Rabat, Morocco
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Bleicher J, Cohan JN, Huang LC, Peche W, Pickron TB, Scaife CL, Bowles TL, Hyngstrom JR, Asare EA. Trends in the management of anorectal melanoma: A multi-institutional retrospective study and review of the world literature. World J Gastroenterol 2021; 27:267-280. [PMID: 33519141 PMCID: PMC7814367 DOI: 10.3748/wjg.v27.i3.267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/28/2020] [Accepted: 01/07/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Anorectal melanoma (ARM) is a rare disease with a poor prognosis. Evidence on optimal treatment is limited and surgical management varies widely. We hypothesized that the frequency of abdominoperineal resection used as primary treatment of ARM has decreased over the past several decades.
AIM To update our understanding of outcomes for patients with ARM and analyze management trends around the world.
METHODS This is a multi-institutional, retrospective study of patients treated for ARM at 7 hospitals. Hospitals included both large, academic, tertiary care centers and smaller, general community hospitals. Using prospectively maintained institutional tumor registries, we identified 24 patients diagnosed with ARM between January 2000 and May 2019. We analyzed factors prognostic for recurrence and survival. We then used Cox regression to measure overall survival (OS) and melanoma-specific survival. We also performed a literature review to assess trends in surgical management and outcomes.
RESULTS Of the 24 patients diagnosed with ARM, 12 (50.0%) had local, 8 (33.3%) regional, and 4 (16.7%) distant disease at diagnosis. Median time to recurrence was 10.4 mo [interquartile range (IQR) 7.5-17.2] with only 2 patients (9.3%) not developing recurrence following surgical resection. Median OS was 18.8 mo (IQR 13.5-33.9). One patient is still alive without recurrence at 21.4 mo from diagnosis; no other patient survived 5 years. Primary surgical management with abdominoperineal resection (APR) vs wide excision (WE) did not lead to differences in OS [hazard ratio = 1.4 (95%CI: 0.3-6.8)]. Review of the literature revealed geographic differences in surgical management of ARM, with increased use of WE in the United States and Europe over time and more frequent use of APR in Asia and India. There was no significant improvement in survival over time.
CONCLUSION There is wide variation in the management of ARM and survival outcomes remain poor regardless of approach. Surgical management should aim to minimize morbidity.
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Affiliation(s)
- Josh Bleicher
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
| | - Jessica N Cohan
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
| | - Lyen C Huang
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
| | - William Peche
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
- Department of Surgery, George E Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT 84114, United States
| | - T Bartley Pickron
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
| | - Courtney L Scaife
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
| | - Tawnya L Bowles
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
- Department of Surgery, Intermountain Medical Center, Murray, UT 84107, United States
| | - John R Hyngstrom
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
- Department of Surgery, George E Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT 84114, United States
| | - Elliot A Asare
- Department of Surgery, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84114, United States
- Department of Surgery, Intermountain Medical Center, Murray, UT 84107, United States
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Smith HG, Glen J, Turnbull N, Peach H, Board R, Payne M, Gore M, Nugent K, Smith MJF. Less is more: A systematic review and meta-analysis of the outcomes of radical versus conservative primary resection in anorectal melanoma. Eur J Cancer 2020; 135:113-120. [PMID: 32563895 DOI: 10.1016/j.ejca.2020.04.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/19/2020] [Accepted: 04/28/2020] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Anorectal melanoma (ARM) is a rare disease with a poor prognosis. There is no consensus as to the optimal primary surgical treatment for ARM, with advocates for both radical (abdominoperineal resection [APR]) and conservative strategies (wide local excision [WLE]). Here, we report a systematic review of studies comparing outcomes between these strategies. METHODS Studies comparing APR with WLE in patients with ARM were included, and a systematic review using the Grading of Recommendations, Assessment, Development and Evaluation methodology was performed. Outcomes deemed critical included overall survival, disease-free survival, local recurrence and quality of life. RESULTS Forty studies were identified, of which 27 were suitable for inclusion. Twenty-three studies compared overall survival between WLE and APR, with no difference in outcomes noted (risk ratio [RR]: 0.80, 95% confidence interval [CI]: 0.60-1.07, p = 0.13). Seven studies compared disease-free survival, with no difference in outcomes noted (RR: 1.08, 95% CI: 0.61-1.91, p = 0.79). A total of 19 studies compared local recurrence rates, with again no significant difference in outcomes noted (RR: 0.71, 95% CI: 0.44-1.14, p = 0.16). None of the studies identified reported quality of life-related outcomes. CONCLUSION There is no evidence to suggest that a radical primary surgical strategy improves outcomes in ARM. Therefore, given the well-documented morbidity associated with APR, WLE with regular surveillance for local recurrence should be the primary strategy in most patients.
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Affiliation(s)
- Henry G Smith
- The Skin Unit, The Royal Marsden Hospital NHS Foundation Trust, London, England, UK; Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jessica Glen
- National Guideline Centre, Royal College of Physicians, London, England, UK; The Health Research Council of New Zealand, Auckland, New Zealand
| | | | - Howard Peach
- Leeds Teaching Hospitals NHS Foundation Trust, UK
| | - Ruth Board
- Lancashire Teaching Hospitals NHS Foundation Trust, UK
| | - Miranda Payne
- Oxford University Hospitals NHS Foundation Trust, UK
| | - Martin Gore
- The Skin Unit, The Royal Marsden Hospital NHS Foundation Trust, London, England, UK
| | - Karen Nugent
- University Hospital Southampton NHS Foundation Trust, UK
| | - Myles J F Smith
- The Skin Unit, The Royal Marsden Hospital NHS Foundation Trust, London, England, UK.
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Anal Melanoma: A Rare Perianal Tumor With a Poor Prognosis. Dis Colon Rectum 2020; 63:573-576. [PMID: 32271217 DOI: 10.1097/dcr.0000000000001672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A 69-year-old woman with a nonrelevant past medical history was referred to an outpatient colorectal clinic because of the incidental finding of an anal pigmented lesion during a routine gynecological examination. Anal inspection and proctoscopy indicated possible anal melanoma ( and ).
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Abstract
Anal cancer is a rare condition, although its incidence has been increasing over the past several decades, particularly in women. The majority of anal cancers are squamous cell cancers and are linked with human papilloma virus (HPV) infection. Recent work in HPV basic science has delineated the mechanism by which the virus leads to the development of anal cancer. With widespread availability of an HPV vaccine since 2006, vaccination has become an important strategy for anal cancer prevention. However, in the US, there remain no guidelines for anal cancer screening. Treatment of anal cancer is dictated largely by accurate staging, which is generally accomplished with a combination of physical exam, magnetic resonance imaging, computed tomography, and positron emission tomography. Chemoradiation remains the mainstay of treatment for most patients, with surgery reserved for salvage therapy. Recent trials have identified the optimal use of available chemotherapeutics. Exciting developments in immune therapies targeting HPV oncoproteins as well as therapeutic vaccines may soon dramatically change the way patients with anal cancer are managed.
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Affiliation(s)
- Matthew M. Symer
- New York-Presbyterian Hospital/Weill Cornell Medicine, Department of Surgery, 525 East 68th Street, New York, NY 10065, USA
| | - Heather L. Yeo
- New York-Presbyterian Hospital/Weill Cornell Medicine, Department of Surgery, 525 East 68th Street, New York, NY 10065, USA
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Falch C, Mueller S, Kirschniak A, Braun M, Koenigsrainer A, Klumpp B. Anorectal malignant melanoma: curative abdominoperineal resection: patient selection with 18F-FDG-PET/CT. World J Surg Oncol 2016; 14:185. [PMID: 27422527 PMCID: PMC4947294 DOI: 10.1186/s12957-016-0938-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/08/2016] [Indexed: 12/28/2022] Open
Abstract
Background Anorectal malignant melanomas (ARMM) are rare tumors, characterized by an early lymphatic spread and distant metastasis, resulting in an extremely poor overall survival. The objective of this study was to determine the pattern of regional lymph node metastasis (LNM) by computed tomography (CT) and 18F-FDG-PET/CT in patients undergoing abdominoperineal resection (APR) and its impact on oncologic outcome. Methods A retrospective analysis of six consecutive patients who underwent APR due to primary ARMM was performed. Patients were staged by CT and PET/CT. Results Four out of six patients had preoperative LNM involvement (two patients inguinal and perirectal, one iliacal, one perirectal), with two of them presenting with distant metastases additionally. Inguinal/iliacal LNM in two patients as well as liver metastasis in one patient was seen in PET/CT and missed by CT. The three patients with initial inguinal/iliacal LNM died during the observation period (overall survival: 10 (6–18) months). The three patients without inguinal/iliacal LNM involvement are currently alive, one patient showing a slowly progressive disease since 5 years, and two patients are tumor-free since 8.5 and 1.5 years (the patients had initial perirectal LNM). Conclusions In ARMM, PET/CT is superior to CT in detection of LNM and distant metastasis. APR is possibly a curative approach if the PET/CT shows exclusively perirectal LNM despite locally advanced tumor growth.
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Affiliation(s)
- Claudius Falch
- Department of Surgery and Transplantation, University of Tuebingen, Hoppe-Seyler-Strasse 3, 72076, Tuebingen, Germany.
| | - Sven Mueller
- Department of Surgery and Transplantation, University of Tuebingen, Hoppe-Seyler-Strasse 3, 72076, Tuebingen, Germany
| | - Andreas Kirschniak
- Department of Surgery and Transplantation, University of Tuebingen, Hoppe-Seyler-Strasse 3, 72076, Tuebingen, Germany
| | - Manuel Braun
- Department of Surgery and Transplantation, University of Tuebingen, Hoppe-Seyler-Strasse 3, 72076, Tuebingen, Germany
| | - Alfred Koenigsrainer
- Department of Surgery and Transplantation, University of Tuebingen, Hoppe-Seyler-Strasse 3, 72076, Tuebingen, Germany
| | - Bernhard Klumpp
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
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