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DiseaseQ1640998· pop 20· linked from 333 articles

hyperkeratosis

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Hyperkeratosis is thickening of the stratum corneum (the outermost layer of the epidermis, or skin), often associated with the presence of an abnormal quantity of keratin, and is usually accompanied by an increase in the granular layer. As the corneum layer normally varies greatly in thickness in different sites, some experience is needed to assess minor degrees of hyperkeratosis.

Key facts

Medical condition (new).name
Hyperkeratosis
Medical condition (new).image
Prominent hyperkeratosis.jpg
Medical condition (new).caption
Micrograph showing prominent hyperkeratosis in skin without atypia. H&E stain.
Medical condition (new).pronounce
(hyper- + kerato- + -osis)

via Wikipedia infobox

Clinical Trials

554 registered

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Wikidata facts

Image
Lichen simplex chronicus - low mag.jpg
Show 2 more facts
ICPC 2 ID
S99
Commons category
Hyperkeratoses
Sources (6)

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~5 min read

Article

12 sections
Contents
  • Types
  • Follicular
  • By other specific site
  • Hereditary
  • Other
  • In mucous membranes
  • Etymology and pronunciation
  • Hyperkeratosis in dogs
  • Therapy
  • See also
  • References
  • External links

Hyperkeratosis is thickening of the stratum corneum (the outermost layer of the epidermis, or skin), often associated with the presence of an abnormal quantity of keratin, and is usually accompanied by an increase in the granular layer. As the corneum layer normally varies greatly in thickness in different sites, some experience is needed to assess minor degrees of hyperkeratosis.

It can be caused by vitamin A deficiency or chronic exposure to arsenic.

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