Parakeratosis is:
Ans. B. Persistence of nucleus in stratum corneum* Stratum corneum is the most superficial layer of the skin and is devoid of nucleus.* Parakeratosis is retention of nucleus in stratum corneum* If there is presence of nucleus in this layer it can be a normal case or can be associated with some pathology.* Normally nucleus in corneum persists in vagina and in mucous membrane of mouth.* Pathologies having nucleus in stratum corneum: seborrheic dermatitis, squamous cell CA, Actinic keratosis, psoriasis, etc.
Absence of nucleus in stratum corneum
Persistence of nucleus in stratum corneum
Thickening of corneum layer
Thickening of prickle cell layer
General