a rare malignant neoplasm arising from vascular tissue; usually occurs in the breast and skin and is believed to originate from the endothelial cells of blood vessels
angiosarcoma详细解释
an.gi.o.sar.co.ma
n.（名词） A malignant tumor arising from vascular tissue. 血管瘤：血管组织生出的恶性肿瘤
