Rare case of perianal endometriosis complicated with perianal fistula: case report

Perianal endometriosis is a rare pathology which occurs mainly in patients with history of vaginal birth associated with an episiotomy scar. We present the case of a 42 year old patient with history of multiple interventions for right perianal fistula, accusing pain, purulent secretions and bleeding at the site of the interventions. Biopsies collected were specific for endometriosis. In the context of the sphincter involvement, which brings a high risk of incontinence, and the hormone-dependent evolution of this pathology, which tends to regress once menopause is reached, a fistulotomy was made, with subsequent remission of the purulent secretions, but with the persistence of the bleeding from the region during the menstrual cycle.