Introduction: Perianal mucinous adenocarcinoma is a tumor that is rarely seen by colorectal or even general surgeons.

Case Presentation: Here we report a case of mucinous adenocarcinoma associated with chronic anal fistula in a 43 years old male patient. He underwent laparoscopic abdominoperineal resection and coverage with myocutaneous pedicled gracilis muscle flap.

Discussion: Most cases are related to chronic anal pathologies, such as anal fistulae; however, further studies are needed for a causation link to be made between the two conditions. Available literature shows that the optimal treatment of perianal mucinous adenocarcinoma is radical surgical resection combined with pre- or postoperative chemoradiotherapy.

Conclusion: This case report is to highlight the rare incidence of mucinous adenocarcinoma in the perianal region.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10382842PMC
http://dx.doi.org/10.1016/j.ijscr.2023.108450DOI Listing

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