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keratoma

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keratoma /ker·a·to·ma/ (ker″ah-to´mah) pl. keratomas, kerato´mata   a callus or callosity.
ker·a·to·ma (kr-tm)
n.
1. See callosity.
2. A horny tumor.

keratoma
[ker′ətō′mə]
a hard, thick epidermal growth caused by hypertrophy of the horny layer of the skin. See also callus, def. 2.

keratoma [ker″ah-to´mah] (pl. keratomas, keratoma´ta) (Gr.)
a callus or callosity.
keratoma heredita´rium mu´tilans an autosomal dominant, progressive, dystrophic form of palmoplantar keratoderma beginning in childhood, sometimes associated with scarring alopecia and deafness.

keratoma
keratosis.


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In the maxillary sinus, cholesteatoma--which is also known as keratoma, primary epidermoid tumor, epidermoid cyst, and keratocyst--is rare.
The differential diagnosis includes keratoma, exostosis, osteoma, and fibroma.
 
 
 
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