epithelioid hemangioendothelioma

epithelioid hemangioendothelioma

angiocentric vascular tumor with metastatic potential composed of epithelioid endothelial cells arranged in short cords or nests surrounded by myxohyaline stroma.
References in periodicals archive ?
However, they are also frequently expressed in many sarcomas: synovial sarcoma, epithelioid sarcoma, epithelioid hemangioendothelioma, angiosarcoma, and desmoplastic small round cell tumor.
Epithelioid hemangioendothelioma of the spleen is very similar to its liver counterpart (i.
Other differential diagnoses of AHE includes vascular tumors and tumor-like conditions of blood vessels, such as angiosarcoma, cutaneous epithelioid angiomatous nodule, bacillary angiomatosis, and epithelioid hemangioendothelioma.
Epithelioid hemangioendothelioma (EHE) is a rare vascular tumor with an estimated prevalence of less than one in one million.
Epithelioid hemangioma is a benign lesion and must be distinguished by the pathologist from epithelioid hemangioendothelioma and epithelioid angiosarcoma, which are low- and high-grade malignancies, respectively.
Epithelioid hemangioendothelioma displays immunohistochemical positive expression with vascular markers such as CD34, CD31, and Fli1.
Epithelioid hemangioendothelioma (EHE) is a rare low-grade malignant vascular tumor, which occur in skin, soft tissue, and visceral organs such as the lung and liver.
Epithelioid hemangioendothelioma (EHE) is a rare tumor originating from the endothelial cells and is histologically characterized by an epithelioid appearance.
ALHE is believed to be neoplastic in origin and to represent a benign form of a spectrum of vascular proliferations, including epithelioid hemangioendothelioma and epithelioid angiosarcoma.
Owing to the uncertainty regarding the nature of this entity, the term epithelioid hemangioma (EH) was introduced by Weiss and Enzinger (2) in 1982, as they believed the lesion was neoplastic and wanted to clearly separate the lesion from the malignant vascular tumor, epithelioid hemangioendothelioma.
Epithelioid hemangioendothelioma (EH) is an uncommon low-grade malignant tumor of vascular origin that may develop in the soft tissue, lung, bone, brain, liver, and small intestine.