epithelioid cell

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epithelioid cell

[‚ep·ə′thē·lē‚ȯid ‚sel]
(histology)
A macrophage that resembles an epithelial cell. Also known as alveolated cell.
References in periodicals archive ?
The characteristic histological feature of sarcoidosis is non-caseating granulomas consisting of epithelioid histiocytes and lymphocytes.
Pathological examination revealed granuloma structures with caseous necrosis composed of epithelioid histiocytes.
Microscopic examination of the removed lung showed areas of fibrinous and organizing pneumonia and abscesses palisaded by epithelioid histiocytes and giant cells.
13,14) It appears as a lobulocentric proliferation of epithelioid histiocytes, often with associated chronic inflammation and eosinophils.
Histopathologically, lipogranuloma is characterized by multiple fat vacuoles surrounded by granulomatous tissue composed of multinucleated giant cells, epithelioid histiocytes, and fibrosis.
In the entire thickness of the dermis, granulomas with epithelioid histiocytes and large multi-nucleated cells containing internal structures similar to fungi were found (figure 1A).
Microscopic examination revealed a fibrocollagenous cyst wall lined by sheets of foamy histiocytes, epithelioid histiocytes with multinucleated foreign body type of giant cells and chronic inflammatory cells with one area showing vague hyphal forms on hematoxylin and eosin stain.
Skin biopsy revealed dermal granulomas composed of epithelioid histiocytes.
There are often isolated multinucleated giant cells (figure 1) and occasional epithelioid histiocytes, but well-formed granulomas are not seen.
Histopathological examination of the biopsy samples showed normal epidermis and caseating tuberculoid granulomas containing epithelioid histiocytes and Langhans giant cells in the papillary dermis (Fig.
Histopathological examination of the incisional biopsy specimen showed normal epidermis with superficial focal parakeratosis, and noncaseating tuberculoid granulomas consisting of epithelioid histiocytes, plasmocytes, and Langhans giant cells in the papillary dermis (Figure 2A and Figure 2B).