Fig. 3
From: A case of radiation-associated angiosarcoma after breast cancer
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40792-018-0538-9/MediaObjects/40792_2018_538_Fig3_HTML.png)
a Hematoxylin and eosin staining. There were many spindle cells and dilated vascular channels. b Magnification of hematoxylin and eosin staining. Immunostaining of the tumor was CD31-positive (c) and mildly positive for CD34 (d)