Case Report

Primary Angiosarcoma of Urinary Bladder: 13th Reported Patient

Figure 2

Histopathology and immunohistochemistry. (a) Typical appearance of anastomosing vascular channels as seen with H&E. (b) Tumor cells stain positive for CD34. (c) Tumor cells stain positive for CD31. (d) Tumor cells do not stain for cytokeratin.
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(b)
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