Case Report Cicatricial Fibromatosis Mimics Metastatic

Summary: Cicatricial fibromatoses usually occur in the an-terior abdominal wall or in the extremities, but rarely in the scalp or the soft tissues of the neck. We report a case of desmoid fibromatosis that developed in a 15-year-old boy 8 months after surgery for cerebellar medulloblastoma. The fibromatoses are distinctive lesions best de-fined as a group of nonmetastasizing fibrous tumors that tend to invade locally and recur after surgical excision (1). Desmoid fibromatosis is a synonym for deep fibromatosis, and is one of the adult fibro-matoses, which occur predominantly but not exclu-sively in patients older than 20 years (1). Desmoid fibromatosis that arises in a surgical scar, cicatricial fibromatosis, is a well-known clin-ical condition (1, 2); however, its occurrence afte