Spindle cell angiosarcoma almost exclusively made up of spindle cells

Angiosarcoma is a malignant vascular neoplasm characterized by haphazard, dissecting vascular channels. In some cases, the growth pattern is predominantly solid, the tumor being composed of polygonal or spindle cells. Cases of angiosarcoma exhibiting a significant spindle cell component have been described as spindle cell angiosarcoma [1,2]. We report a case of spindle cell angiosarcoma in which only a tiny part of the tumor showed the morphology of a conventional angiosarcoma.An 86-year-old Japanese [...]