epithelioid hemangioendothelioma

(redirected from intravascular bronchioloalveolar tumor)

epithelioid hemangioendothelioma

angiocentric vascular tumor with metastatic potential composed of epithelioid endothelial cells arranged in short cords or nests surrounded by myxohyaline stroma.
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The presence of cytokeratin-positive carcinomatous emboli and the marked pulmonary arterial and arteriolar intimal fibrocellular proliferation distinguish PTTM from other pathologic entities that could also cause pulmonary hypertension, including paraneoplastic thromboembolism, angiotrophic lymphoma, lymphangitis carcinomatosa, epithelioid hemangioendothelioma, and intravascular bronchioloalveolar tumor of the lung.
Intravascular bronchioloalveolar tumor of the lung presenting as pulmonary thromboembolic disease and pulmonary hypertension.

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