Porokeratosis

Porokeratosis
A porokeratosis lesion in a patient with disseminated superficial actinic porokeratosis.
SpecialtyPediatrics, dermatology 

Porokeratosis is a specific disorder of keratinization that is characterized histologically by the presence of a cornoid lamella, a thin column of closely stacked, parakeratotic cells extending through the stratum corneum with a thin or absent granular layer.: 532 

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