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Resembling epithelium.


(Anatomy) of the nature of epithelium


(ˌɛp əˈθi liˌɔɪd)

resembling epithelium.
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Epithelioid malignant peripheral nerve sheath tumor
As they described, GP is a rare neuroendocrine tumor comprising epithelioid cells, spindle-shaped cells, and ganglionlike cells and this neuroendocrine tumor commonly arises from the duodenum.
Perivascular epithelioid cell tumors are rare mesenchymal tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells.
Histological examination revealed a tumor composed predominantly of epithelioid cells set in a myxohyaline stroma spanning the entire dermis [Figure 1]c.
skin testing with a dilute solution of nerve in saline produced an epithelioid cell granuloma, in which the cytoplasm contained dilated rough endoplasmic reticulum filled with an electron-dense product.
After surgical resection and histopathologic evaluation, a malignant nodular stage of an epithelioid cortical-type thymoma was diagnosed.
There are several histologic forms of AE such as epithelioid AE, Kaposiform AE, and myoid AE.
In dermis an inflammatory infiltrate composed predominantly by clusters of epithelioid cells on a background of vacuolated histiocytes.
However, the case referred for consultation at yet another facility, which instead diagnosed the lesion as an epithelioid malignant neoplasm, favoring carcinoma over epithelioid sarcoma, according to the study.
Angiomyolipomas (AMLs) are the most common mesenchymal renal neoplasms and are classified as neoplasms of perivascular epithelioid cells (PEComa).
Epithelioid angiosarcoma is a variant of angiosarcoma composed of large rounded epithelioid endothelial cells that are positive for cytokeratin on immunostaining.