title: Fibrous histiocytoma.
abstract: A 13-year-old boy underwent excision of a fibrous histiocytoma, which was initially thought to be a leiomyoma. When the tumor recurred, it was resected using wide tissue margins and frozen section control. Visual acuity remained normal although there has been some postoperative diplopia. There has been no recurrence over the past year. A local aggressive surgical approach is advocated when this tumor appears in the pediatric age group.
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis; D008297:Male; D009364:Neoplasm Recurrence, Local; D009918:Orbital Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*