Pulmonary epithelioid hemangioendothelioma--a case report
Pulmonary epithelioid hemangioendothelioma (PEH) is a rare soft tissue tumor of endothelial origin that occurs among young women and typically presents as bilateral multiple nodules, readily mistaken for carcinoma or, as in this case, Wegener's granulomatosis. This is a rare disease, with approximately 50 cases described in the literature. In the present report, we describe a case of PEH in a 39-yr-old woman. Immunohistochemically, the tumor cells were positive for CD34.