A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae

Mucinous adenocarcinoma of the perianal region is an oncologic rarity posing a diagnostic and therapeutic dilemma for treating oncologists. This is due to the low number of reported cases, compounded by the lack of definitive therapeutic guidelines. It accounts for 2% to 3% of all gastrointestinal m...

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Main Authors: Fahmi Pramaditto Azmi, Nur Afdzillah Abdul Rahman, Luqman Mazlan, Normala Basiron, Farrah-Hani Imran
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Case Reports in Surgery
Online Access:http://dx.doi.org/10.1155/2020/1798543
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author Fahmi Pramaditto Azmi
Nur Afdzillah Abdul Rahman
Luqman Mazlan
Normala Basiron
Farrah-Hani Imran
author_facet Fahmi Pramaditto Azmi
Nur Afdzillah Abdul Rahman
Luqman Mazlan
Normala Basiron
Farrah-Hani Imran
author_sort Fahmi Pramaditto Azmi
collection DOAJ
description Mucinous adenocarcinoma of the perianal region is an oncologic rarity posing a diagnostic and therapeutic dilemma for treating oncologists. This is due to the low number of reported cases, compounded by the lack of definitive therapeutic guidelines. It accounts for 2% to 3% of all gastrointestinal malignancies and is historically known to arise from chronic anal fistulas and ischiorectal or perianal abscesses. We hereby report an interesting case of perianal mucinous adenocarcinoma in a 66-year-old male initially treated for a horseshoe abscess with complex fistulae. He presented with a 6-month history of a discharging growth in perianal region and painful defecation associated with occasional blood mixed stools. An incisional biopsy from the ulcer revealed mucinous adenocarcinoma. Contrast-enhanced computed tomography (CT) scan and magnetic resonance imaging (MRI) scan showed a localized perianal growth which involves the internal and external sphincter as well as suspicious involvement in the posterior aspect of the levator ani/puborectalis sling, which was further confirmed with colonoscopy (see figures). With no preset treatment protocol for this rare entity, he was managed with an abdominoperineal resection (APR) and vertical rectus abdominis myocutaneous flap (VRAM) tissue reconstruction. He had a turbulent postoperative period including intestinal obstruction secondary to internal herniation of bowel resulting in flap failure. The subsequent perineal wound was managed conservatively with advanced wound care and has since completely healed.
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spelling doaj-art-c6a386d607c64e36b52d94cdc25e1e322025-02-03T01:05:15ZengWileyCase Reports in Surgery2090-69002090-69192020-01-01202010.1155/2020/17985431798543A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex FistulaeFahmi Pramaditto Azmi0Nur Afdzillah Abdul Rahman1Luqman Mazlan2Normala Basiron3Farrah-Hani Imran4Colorectal Surgery Unit, Department of Surgery, UKM Medical Centre, Kuala Lumpur, MalaysiaColorectal Surgery Unit, Department of Surgery, UKM Medical Centre, Kuala Lumpur, MalaysiaColorectal Surgery Unit, Department of Surgery, UKM Medical Centre, Kuala Lumpur, MalaysiaDepartment of Plastic and Reconstructive Surgery, Hospital Kuala Lumpur, MalaysiaPlastic and Reconstructive Surgery Unit, Department of Surgery, UKM Medical Centre, Kuala Lumpur, MalaysiaMucinous adenocarcinoma of the perianal region is an oncologic rarity posing a diagnostic and therapeutic dilemma for treating oncologists. This is due to the low number of reported cases, compounded by the lack of definitive therapeutic guidelines. It accounts for 2% to 3% of all gastrointestinal malignancies and is historically known to arise from chronic anal fistulas and ischiorectal or perianal abscesses. We hereby report an interesting case of perianal mucinous adenocarcinoma in a 66-year-old male initially treated for a horseshoe abscess with complex fistulae. He presented with a 6-month history of a discharging growth in perianal region and painful defecation associated with occasional blood mixed stools. An incisional biopsy from the ulcer revealed mucinous adenocarcinoma. Contrast-enhanced computed tomography (CT) scan and magnetic resonance imaging (MRI) scan showed a localized perianal growth which involves the internal and external sphincter as well as suspicious involvement in the posterior aspect of the levator ani/puborectalis sling, which was further confirmed with colonoscopy (see figures). With no preset treatment protocol for this rare entity, he was managed with an abdominoperineal resection (APR) and vertical rectus abdominis myocutaneous flap (VRAM) tissue reconstruction. He had a turbulent postoperative period including intestinal obstruction secondary to internal herniation of bowel resulting in flap failure. The subsequent perineal wound was managed conservatively with advanced wound care and has since completely healed.http://dx.doi.org/10.1155/2020/1798543
spellingShingle Fahmi Pramaditto Azmi
Nur Afdzillah Abdul Rahman
Luqman Mazlan
Normala Basiron
Farrah-Hani Imran
A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
Case Reports in Surgery
title A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
title_full A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
title_fullStr A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
title_full_unstemmed A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
title_short A Case of Large Perianal Mucinous Adenocarcinoma Arising from Recurrent Abscess and Complex Fistulae
title_sort case of large perianal mucinous adenocarcinoma arising from recurrent abscess and complex fistulae
url http://dx.doi.org/10.1155/2020/1798543
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