title: Bone Metastases from Soft Tissue Sarcomas.
abstract: The incidence, distribution, time of appearance, and radiologic findings of bone metastases from soft tissue sarcomas, exclusive of lymphomas, were evaluated in 320 patients with soft tissue sarcomas. Thirty patients (9.4%) had evidence of 58 bone metastases. Five of 30 patients presented with metastases, and 25 of 30 patients developed metastases up to 66 months after presentation with a mean time interval of 21.3 months. The incidence of skeletal metastases differed among histologic subtypes of sarcomas; alveolar soft part sarcoma (5 of 8), dedifferentiated liposarcoma (2 of 4), angiosarcoma (2 of 4), and rhabdomyosarcoma (5 of 16) tended to show a higher incidence of bone metastases. The sarcomas metastasized to the regional bones close to the primary tumor in 16 (53%) of 30 patients and to the axial bones in 18 (60%). On conventional radiographs, the osseous metastases demonstrated predominantly osteolytic changes, and evidence of pathological fracture was observed in 31% of 58 metastases.
authors.affiliation: Department of Orthopaedic Surgery, Osaka University Medical School, Osaka, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Yoshikawa
authors.forename: Akira
authors.initials: A
authors.lastname: Myoui
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ochi
authors.forename: Nobuhito
authors.initials: N
authors.lastname: Araki
authors.forename: Takafumi
authors.initials: T
authors.lastname: Ueda
authors.forename: Ikuo
authors.initials: I
authors.lastname: Kudawara
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Nakanishi
authors.forename: Hisashi
authors.initials: H
authors.lastname: Tanaka
authors.forename: Hironobu
authors.initials: H
authors.lastname: Nakamura