By Gary M. White, MD

Focal acral hyperkeratosis

Focal acral hyperkeratosis (FAH) is an inherited keratoderma in which keratotic papules occur on the sides of the hands and feet, usually in a darker-skinned person.


In this rare condition, multiple papules 2-5 mm in size develop early in life along the sides of the palm and outer fingers usually in a black patient. In one variant crateriform hyperkeratotic papules of the feet may occur [Indian J Dermatol Venereol Leprol 2007;73:359-61].


No treatment is usually needed, however, oral retinoids have been given.


JAAD 1987;17;88

J Clin Aesthet Dermatol. 2010 Jun;3(6):51-3.


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