title: Malignant hemangiopericytoma of the bone.
abstract: Hemangiopericytoma is a rare vascular tumor of pericyte origin with variable malignant potential. Very rarely, this tumor occurs as a primary bone lesion. We present a case of a highly malignant hemangiopericytoma of the proximal tibia. Current therapy consists of radical resection of the tumor with postoperative radiation therapy being recommended. Chemotherapy seems to be useful in disseminated disease. The prognosis correlates to the histological grading of the tumor. Early or late recurrence and distant metastases with fatal outcome, as shown in our case study, are not uncommon.
authors.affiliation: Orthopädische Klinik und Poliklinik, Ludwig-Maximilians-Universität München, Klinikum Grosshadern, Munich, Germany. hrduerr@ort.med.uni-muenchen.de
authors.forename: H R
authors.initials: HR
authors.lastname: Dürr
authors.forename: A
authors.initials: A
authors.lastname: Nerlich
authors.forename: A
authors.initials: A
authors.lastname: Lienemann
authors.forename: P E
authors.initials: PE
authors.lastname: Müller
authors.forename: H J
authors.initials: HJ
authors.lastname: Refior
mesh_terms: D000671:Amputation, Surgical; D000792:Angiography; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology / Q000601:surgery*; D003131:Combined Modality Therapy; D017809:Fatal Outcome; D005260:Female; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D013977:Tibia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*