Transperineal excision of a sizeable angiofibroma of the ischiorectal fossa. A case report.

Cellular angiofibroma is a recently described rare benign soft-tissue tumor more commonly presenting in middle-aged women, often mimicking malignancy. The vulva is most common location. Complete local excision is the best curative treatment and usually there is no recurrence after surgery. We describe a 49-year-old woman with a painless tumor in the left ischiorectal fossa. It was a random finding in a routine computed tomography (CT) scan after resection of ear melanoma 3 years previously. Ultrasonography showed a solid mass, and further magnetic resonance imaging (MRI) suggested a rhabdomyosarcoma. Altogether, these findings indicated malignant disease. An uncomplicated simple excision of the tumor was done in the operating theatre. The mass measured 7×5×5 cm and the histopathological examination found that it was a cellular angiofibroma, a benign lesion. There were no postoperative complications. This case report highlights the need for multidisciplinary team management of rare tumors such as cellular angiofibromas.