hyperkeratosis
Dictionary:
hy·per·ker·a·to·sis (hī'pər-kĕr'ə-tō'sĭs) 
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n., pl., -ses (-sēz).
Hypertrophy of the cornea or the horny layer of the skin.
hyperkeratotic hy'per·ker'a·tot'ic (-tŏt'ĭk) adj.
Related Videos:
hyperkeratosis |
Dental Dictionary:
hyperkeratosis |
(hī'purker'ə-tō'sis)
n
n
An excessive formation of keratin (for example, as seen in leukoplakia).
Hyperkeratosis. (Regezi/Sciubba/Pogrel, 2000)
Medical Dictionary:
hy·per·ker·a·to·sis |
(hī'pər-kĕr'ə-tō'sĭs)
n., pl. -ses (-sēz).
n., pl. -ses (-sēz).
Hypertrophy of the cornea or the horny layer of the skin. Also called hyperkeratinization.
hy'per·ker'a·tot'ic (-tŏt'ĭk) adj.
Veterinary Dictionary:
hyperkeratosis |
1. hypertrophy of the horny layer (stratum corneum) of the skin, or any disease characterized by it; the hyperkeratoses may have distinctive formats, e.g. annular (ring formations), basket-weave, compact, laminated.
2. hypertrophy of the cornea.
- bovine h. — chlorinated naphthalene poisoning.
- digital h. — increased thickness of the keratinized epidermis of footpads in dogs and rarely cats. May be in response to trauma or associated with distemper (hardpad disease), or pemphigus foliaceus.
- epidermolytic h. — a form of ichthyosis in humans which is inherited as an autosomal dominant trait; there is severe degeneration of the granular layer of the epidermis.
- juvenile h. — a crusting dermatosis over bony prominences, face and chin of young dogs. See zinc-responsive dermatosis.
- nasal h. — an abnormal thickening, sometimes with fissures, of the planum nasale of dogs. May occur in association with digital hyperkeratosis (see above) as a feature of distemper (hardpad disease). Also seen in pemphigus foliaceus and
discoid lupus erythematosus .
Nasal hyperkeratosis. By permission from Kummel BA, Color Atlas of Small Animal Dermatology, Mosby, 1989 - nasodigital h. — see nasal hyperkeratosis, digital hyperkeratosis (above).
- orthokeratotic h. — hyperkeratosis with non-nucleated cells present.
- parakeratotic h. — hyperkeratosis with nucleated cells present; called also parakeratosis.
Wikipedia:
Hyperkeratosis |
Hyperkeratosis is thickening of the stratum corneum, often associated with a qualitative abnormality of the keratin.[1] It can be caused by Vitamin A deficiency.
See also
References
- ^ Kumar, Vinay; Fausto, Nelso; Abbas, Abul (2004) Robbins & Cotran Pathologic Basis of Disease (7th ed.). Saunders. Page 1230. ISBN 0721601871.
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more |
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| Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Hyperkeratosis". Read more |
