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← Childhood Soft Tissue Sarcoma

HEALTH PROFESSIONAL · SOURCE READING

Molecular features

Source: Childhood Soft Tissue Sarcoma Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: April 21, 2025 · Captured 2026-09-09.

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Context: Treatment of Tumors of Uncertain Differentiation / Pleomorphic Sarcoma, Undifferentiated (Malignant Fibrous Histiocytoma)

An analysis of 70 patients who were diagnosed with malignant fibrous histiocytosis of no specific type, storiform or pleomorphic malignant fibrous histiocytoma, pleomorphic sarcoma, or undifferentiated pleomorphic sarcoma showed a highly complex karyotype with no specific recurrent aberrations.[154]

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Undifferentiated sarcomas with 12q13–15 amplification, including MDM2 and CDK4, are best classified as dedifferentiated liposarcomas.[154] The relationship between this tumor and the family of undifferentiated/unclassified tumors with spindle cell morphology remains relatively undefined.

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Preserved source evidence · Not medical advice