This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
In which of the following conditions Parakeratosis most frequently occurs – 
Select and explain. 
A. Actinic keratoses, B. Seborrheic keratoses, C. Molluscum contagiosum, D. Basal cell carcinoma
A: Actinic keratoses
Answer: A: Actinic keratoses 
Explanation: 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. Don't 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.