osteoblastic sarcoma.
sarcoma (särkō´m
),
See giant cell myeloma.
sarcoma (särkō´m
),n 1. a malignant neoplasm of connective tissue elements.
2. a malignant neoplasm arising from mesenchyme or its derivatives.
2. a malignant neoplasm arising from mesenchyme or its derivatives.
sarcoma, ameloblastic,
n a rare mixed tumor of odontogenic origin in which the mesenchymal component has undergone malignant transformation.
sarcoma, Ewing's,
n.pr a rare, neuroectodermal malignancy of bone, caused by a translocation between chromosomes 11 and 22 [t(11, 22)]. It is characterized by pain, a radiographic appearance called
onion skinning, and a histologic picture consisting of solid sheets of small round blue cells.
onion skinning, and a histologic picture consisting of solid sheets of small round blue cells.
sarcoma, Kaposi's,
n.pr a benign neoplasm of endothelial tissues. Skin lesions appear as multiple red-brown nodules ranging from a few mm to 1 cm in size. Histologically, endothelial proliferation in sheets or small vessels, hemosiderin deposits, fibroblastic proliferation, and an inflammatory infiltrate of lymphocytes are seen. Associated with HIV infection.
)
Kaposi's sarcoma.
sarcoma, neurogenic (malignant schwannoma),
n the malignant form of neurilemoma.
sarcoma, osteoblastic (osteogenic sarcoma),
n an osteosarcoma in which atypical bone formation is the most evident histopathologic feature. See also osteosarcoma.
sarcoma, osteogenic,
n a malignant connective tissue tumor that produces bone.
sarcoma, reticulum cell,
n a malignant tumor of reticulum cells. It may occur as a primary neoplasm in soft tissue or bone.
Sarcomastigophora
n.pl one of the four phyla of parasitic protozoa, to which the sarcodina and mastigophora subphyla belong. Capable of causing keratitis.
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