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porokeratosis

n. (context pathology English) A disorder of keratinization that is characterized 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.

Wikipedia
Porokeratosis

Porokeratosis (or parakeratosis) 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.