Atypical skin tumor: Giant perianal epidermal cyst. Presentation of a case.

Abstract

Introduction: Epidermoid cysts are benign, slow-growing lesions that originate from the epidermis. They mostly affect young men and middle-aged adults. They occur most frequently on the face, neck and trunk, are atypical in the perineal region, extremities, bone and breast.

Clinical case: male, 45 years old, with a perianal tumor of 3 years of evolution. Discomfort when cleaning and itching. MRI reports cystic lesion without involvement of the anal canal. Complete exceresis of the cyst with its capsule. Pathological report: epidermoid cyst. Clinical control without recurrences.

Conclusion: Epidermal cysts in the perianal region are atypical. It is important to rule out other pathologies such as abscess, pilonidal cyst, or tumor lesions. Complete surgical exceresis without fractures and with its capsule is the rule in order to avoid recurrences.