prostate cancer sarcoma prostate sarcoma http://purl.obolibrary.org/obo/DOID_4054 http://purl.obolibrary.org/obo/NCIT_C7731 A rare malignant mesenchymal neoplasm that arises from the prostate gland. prostatic sarcoma sarcoma of prostate sarcoma of the prostate prostate The Complete Dictionary of Sexology