epidermoid
- noun
- /ˌɛpɪˈdɜrmɔɪd/
- Specialized
:
quiste epidermoide
- After examining the growth, the dermatologist confirmed it was an epidermoid cyst requiring no treatment.
- epidermoid cyst
Examples
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Incidental epidermoids can be quite large at presentation, owing to their slow growth and benign nature.
Academic text (2006) -
Congenital epidermoids are believed to arise as a result of cellular dysfunction during embryogenesis, which leads to an abnormal migration of ectodermal cells.
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Neither patient had any evidence of an epidermoid by history or physical examination.
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There have also been reports of epidermoids occurring at sites of trauma, usually several years after the traumatic event.
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An epidermoid that involves the middle ear and temporal bone is often called a cholesteatoma.
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To the best of our knowledge, no report of an incidental sphenoid sinus epidermoid has appeared in the literature.
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It is interesting that these transformations have occurred at the same site where a previous benign epidermoid had been removed years earlier.
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Epidermoids of the sphenoid sinus are exceedingly rare, having been described only twice previously in the literature.
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Epidermoid cysts or tumors are uncommon. When they do occur, they are usually large at presentation, and the initial symptoms usually involve the cranial nerves.
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Epidermoids that arise outside this area are believed to be congenital, whereas cholesteatomas can be either congenital or acquired.
Academic text (2006)
Synonyms
61
3.6
A small swelling under the skin that feels like a bump
1
4.2
A small harmless lump under the skin filled with oily material from a blocked gland
A small lump on the scalp filled with oil from a blocked skin gland
Surface Forms
Morphology
Etymology
Epidermoid comes from the Greek parts epi- 'on', derm- 'skin' and -oid 'like'. So, an epidermoid cyst is a small, usually harmless lump just under the skin that is made of skin cells.