porokeratosis

In pathology terms the difference between parakeratosis and porokeratosis

is that parakeratosis is retention of nuclei in the stratum corneum layer of skin while porokeratosis is 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.

Actinickeratosis is likely misspelled.

Actinickeratosis has no English definition.

As a noun porokeratosis

is 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.

As nouns the difference between taxonomy and porokeratosis

is that taxonomy is the science or the technique used to make a classification while porokeratosis is (pathology) 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.