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What is Parakeratosis is: and explain in detail?
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.