cancer, malignant neoplastic disease - any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream

chondrosarcoma - a malignant neoplasm of cartilage cells

endothelial myeloma, Ewing's sarcoma, Ewing's tumor, Ewing's tumour - malignant tumor in bone marrow (usually in the pelvis or in long bones)

Kaposi's sarcoma - a sarcoma that starts with purplish spots on the feet and legs and spreads from the skin to lymph nodes and internal organs; a common manifestation of AIDS; "until 1980 Kaposi's sarcoma occurred almost exclusively with Jewish or Italian or black men"

leiomyosarcoma - sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostate

liposarcoma - sarcoma of fat cells

myosarcoma - sarcoma of muscle tissue

malignant neuroma, neurosarcoma - a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue

osteogenic sarcoma, osteosarcoma - malignant bone tumor; most common in children and young adults where it tends to affect the femur

rhabdomyosarcoma, rhabdosarcoma - a highly malignant neoplasm derived from striated muscle

adenomyosarcoma, embryoma of the kidney, nephroblastoma, Wilms tumour, Wilms' tumor - malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass