Fig. 4.
Histologic findings. (A) H&E stain (×40) demonstrated abnormal, pleomorphic, and malignant endothelial cells. (B) Positive immunohistochemistry of vimentin (×100).
Histologic findings. (A) H&E stain (×40) demonstrated abnormal, pleomorphic, and malignant endothelial cells. (B) Positive immunohistochemistry of vimentin (×100).