| umls-concept:C0334663 | skos:definition | MSH: 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the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid.,NCI: An outdated term referring to non-Hodgkin lymphomas made up of large abnormal lymphoid cells. Histiocytic lymphomas include mature B-cell and T-cell non-Hodgkin lymphomas. Many tumors that were once called histiocytic lymphomas are now considered to be a type of large cell lymphoma.,NCI: A malignant neoplasm of large lymphocytes, which resemble histiocytes.,NCI: A malignant neoplasm composed of cells resembling histiocytes.,NCI: An aggressive malignant neoplasm with a poor response to therapy, usually presenting as stage III/IV disease. It is characterized by the presence of neoplastic cells with morphologic and immunophenotypic characteristics similar to those seen in mature histiocytes.,NCI: An antiquated term referring to large cell | lld:umls |
