Author: Dr Amy Stanway, Dermatology Registrar, Nottingham, United Kingdom, 2005.
What are punctate keratodermas?
Punctuate keratodermas result in tiny bumps of thickened skin on the palms and soles and usually appears in late childhood or early adulthood.
What causes punctate keratodermas?
Punctate keratodermas are inherited by an autosomal dominant pattern (the abnormal gene is passed on from an affected parent). Some people with filiformkeratoderma have no apparent family history of the condition.
What are the different types of punctate keratoderma?
There are three different types of punctuate-type keratoderma:
Punctate keratoderma: tiny hard rounded bumps in the palms or soles.
Filiformkeratoderma: tiny hard ‘spikes’ of skin growing out of the skin of the palms and soles and sometimes elsewhere on the skin.
Marginal keratoderma: tiny bumps along the border of the palms and fingers, soles and toes.