<prompt> In which of the following conditions Parakeratosis most frequently occursActinic keratosesSeborrheic keratosesMolluscum contagiosumBasal cell carcinoma  <response>: Normally, nuclei disappear in stratum corneum. Retention of nuclei within the cells of stratum corneum is referred to as parakeratosis.Parakeratosis is seen in -Normally Mucous membrane of mouth and vagina.Disorders Actinic keratosis, Psoriasis, Squamous cell carcinoma, Seborrheic dermatitis, Eczema. Dont get confused with option b; It is seborrheic keratosis, not seborrheic dermatitis. Seborrheic keratosis also known as senile wart is a noncancerous benign growth that originates in keratinocytes, seen in old people. 