disease has location vascular cancer sarcoma angiosarcoma https://www.malacards.org/card/angiosarcoma MESH:D006394 ICDO:9120/3 MedDRA:10002476 GARD:0020900 UMLS:C0018923 angiosarcoma ONCOTREE:ANGS blood vessel sarcoma Orphanet:263413 angiosarcoma (disease) hemangiosarcoma, malignant malignant angioendothelioma HP:0200058 ICD9:171.9 vascular sarcoma EFO:0003968 NCIT:C3088 SCTID:403977003 hemangiosarcoma A malignant tumor arising from the endothelial cells of the blood vessels. Microscopically, it is characterized by frequently open vascular anastomosing and branching channels. The malignant cells that line the vascular channels are spindle or epithelioid and often display hyperchromatic nuclei. Angiosarcomas most frequently occur in the skin and breast. Patients with long-standing lymphedema are at increased risk of developing angiosarcoma. MONDO:0016982 angiosarcoma (disease) malignant hemangioendothelioma MEDGEN:42385 sarcoma of blood vessel DOID:0001816 soft tissue sarcoma blood vessel