Parakeratosis

 ( Dermatologic Terminology ) 

Parakeratosis is a mode of keratinization characterized by the retention of nuclei in the stratum corneum. In , parakeratosis is normal.Kumar, Vinay; Fausto, Nelson; Abbas, Abul (2010) Robbins & Cotran Pathologic Basis of Disease (8th ed.). Saunders. Page 1170. . In the skin, this process leads to the abnormal replacement of Ciliary body squamous cell with nucleated cells. Parakeratosis is associated with the thinning or loss of the granular layer and is usually seen in diseases of increased cell turnover, whether inflammation or neoplasia. Parakeratosis is seen in the plaques of psoriasis and in dandruff.

Granular parakeratosis (originally termed axillary granular parakeratosis) is an idiopathic, benign, nondisabling cutaneous disease that manifests with intertriginous erythematous, brown or red, scaly or keratotic and plaques. It presents in all age groups and has no established clinical associations.

File:Histopathology of reactive hyperkeratosis.jpg|In contrast, hyperkeratosis (pictured) may also show a heterogeneous stratum corneum, but a preserved granular layer is seen.

• Skin lesion
• Skin disease
• List of skin diseases