Desmoid Tumor of the Buttock in a Preadolescent Child

Extra-abdominal desmoid tumors are circumscribed but non-capsulated neoplasms of differentiated fibrous tissue arising from musculoaponeurotic tissues. They tend to be locally infiltrative, resulting in a high rate of local recurrence without metastasis, following surgical resection. We report a 9-year-old boy who had a large desmoid tumor in his right buttock that was successfully excised.