Cutaneous angiosarcoma: Report of three different and typical cases admitted in a unique dermatology clinic

Angiosarcoma is a rare and aggressive tumor with high rates of metastasis and relapse. it shows a particular predilection for the skin and superficial soft tissues. we report three distinct and typical cases of angiosarcoma that were diagnosed in a single dermatology clinic over the course of less than a year: i) angiosarcoma in lower limb affected by chronic lymphedema,featuring stewart-treves syndrome; ii) a case of the most common type of angiosarcoma loated in the scalp and face of elderly man and; iii) a skin angiosarcoma in previously irradiated breast. all lesions presented characteristic histopathological findings: irregular vascular proliferation that dissects the collagen bundles with atypical endothelial nuclei projection toward the lumen. © 2017 by anais brasileiros de dermatologia.