title: Infantile hemangiopericytoma of the musculoskeletal system: case report and literature review.
abstract: Infantile hemangiopericytoma is an uncommon cause of a soft-tissue mass in the neonatal period. Only 86 of these tumors have been reported in the literature. Thirty of these were located in the extremities. This review presents a case of infantile hemangiopericytoma localized to the knee in an 8-month-old infant. Current literature suggests that the majority of these lesions are benign, and surgical excision is curative. Recurrence and metastatic disease rarely occur. Because 30-50% of infantile hemangiopericytomas occur in the extremities, orthopaedic surgeons should be aware of and familiar with this tumor.
authors.affiliation: Division of Orthopaedics, Children's Hospital of Eastern Ontario, University of Ottawa, Canada.
authors.forename: S A
authors.initials: SA
authors.lastname: Hoey
authors.forename: R M
authors.initials: RM
authors.lastname: Letts
authors.forename: C
authors.initials: C
authors.lastname: Jimenez
mesh_terms: D005121:Extremities / Q000601:surgery; D005260:Female; D006393:Hemangiopericytoma / Q000473:pathology / Q000628:therapy; D006801:Humans; D007223:Infant; D007717:Knee / Q000473:pathology / Q000601:surgery