Hepatic epithelioid hemangioendothelioma managed with minimally invasive surgery: A case report

Figure 3 Pathologic findings of hepatic epithelioid hemangioendothelioma. A: The cut surface shows an ill-defined whitish mass; B: The tumor demonstrates hypercellularity with margins indistinct from the surrounding tissue (H&E stain, × 20); C: Tumor cells are arranged individually or in cords within a myxohyaline stroma, with frequent intracytoplasmic vacuoles (black arrows) (H&E stain, ×200); D: Immunohistochemistry reveals strong reactivity for ERG, indicating a vascular endothelial origin, and also shows immunoreactivity for Cytokeratin 7. The CK7-positive staining pattern appeared morphologically and resembled the intrahepatic bile ducts.