epithelioid
- adjective
- /ˌɛpɪˈθiːliɔɪd/
- Specialized
- Histopathologic analysis of the granulation tissue identified multiple discrete epithelioid granulomas that were characterized by aggregates of epithelioid cells, Langhans' giant cells, and a few areas of necrosis.
- epithelioid cells
- epithelioid granulomas
Examples
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Cytology shows the sheet-like structure with mononuclear spindle and epithelioid cells.
Academic text (2003) -
Also present are many epithelioid cells with pale eosinophilic cytoplasm.
Academic text (2006) -
The initial pathologic specimens were reviewed and considered to be epithelioid hemangioendotheliomas.
Academic text (2006) -
Compared with other types of granuloma, the tubercular variety tends to exhibit a greater number of epithelioid and giant cells.
Academic text (2002) -
Histopathologic analysis of the excised tissue identified chronic inflammatory cells and a number of epithelioid cells and Langhans giant cells.
Academic text (2002) -
Histopathology revealed that the mass contained granulomas with caseous necrosis as well as Langhans' giant cells and numerous epithelioid cells.
Academic text (2002) -
The combined morphologic and immunohistochemical features were consistent with the epithelioid variant of malignant peripheral nerve sheath tumor.
Academic text (2006) -
Histologically, the tumor had a solid and multinodular growth pattern and was predominantly made up of spindle cells with a minor component of epithelioid cells with moderate cellular atypia.
Academic text (2009) -
A fine-needle aspirate of one of the palpable cervical lymph nodes revealed multiple epithelioid granulomas with interspersed lymphocytes (Figure 2, A and B).
Academic text (1998) -
The biopsy results showed many epithelioid cells indicating a reaction to injury.
Synonyms
Forming a thin layer of cells that covers the body and lines organs
Surface Forms
Morphology
epithelioid = epithelial (semi-transparent) = epithel + ioid
The suffix '-oid' indicates resemblance, but the specific scientific context may not be immediately obvious to all learners.
Etymology
Epithelioid comes from epithelial, the thin cells that form the 'lining' of skin and organs, plus the ending -oid meaning 'like', as in humanoid. So something described as epithelioid simply looks or acts 'like' epithelial cells under a microscope.