: MeSH: Histiocytic Sarcoma

Neoplasms > Neoplasms by Histologic Type > Histiocytic Disorders, Malignant > Histiocytic Sarcoma

Hemic and Lymphatic Diseases > Lymphatic Diseases > Histiocytosis > Histiocytic Disorders, Malignant > Histiocytic Sarcoma

Histiocytic Sarcoma

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Malignant neoplasms composed of MACROPHAGES or DENDRITIC CELLS. Most histiocytic sarcomas present as localized tumor masses without a leukemic phase. Though the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid. A rare, usually progressive disorder comprising an invasive proliferation of neoplastic HISTIOCYTES. Many previous cases are now thought to represent ANAPLASTIC LARGE-CELL LYMPHOMA.

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