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Extraskeletal osteosarcoma.

E B Chung, F M Enzinger

    Cancer
    |September 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Extraskeletal osteosarcoma primarily affects adults over 50, often presenting as a deep soft tissue mass in extremities. This aggressive tumor frequently recurs and metastasizes, leading to a high mortality rate.

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    Area of Science:

    • Oncology
    • Pathology
    • Surgical Oncology

    Background:

    • Extraskeletal osteosarcoma is a rare malignant neoplasm.
    • It arises outside the bone, typically in soft tissues.

    Purpose of the Study:

    • To analyze the clinical characteristics, histology, and outcomes of extraskeletal osteosarcoma.
    • To identify prognostic factors and common metastatic sites.

    Main Methods:

    • Retrospective review of 88 extraskeletal osteosarcoma cases.
    • Analysis of patient demographics, tumor location, clinical presentation, histology, and follow-up data.

    Main Results:

    • The tumor predominantly affects adults >50 years, with a slight male predominance.
    • Common sites include extremities (thighs) and retroperitoneum; masses are often deep-seated.

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  • High rates of recurrence (43%) and metastasis (63%) were observed, with lung, lymph nodes, and bone as primary metastatic sites.
  • Mortality rate was 61.5% among patients with follow-up.

    • Conclusions:

    • Extraskeletal osteosarcoma is an aggressive malignancy with a poor prognosis.
    • Early detection and understanding of metastatic patterns are crucial for patient management.