In which of the following conditions Parakeratosis most frequently occurs-
Parakeratosis refers to retention of nuclei in horny layer. In actinic keratosis there is multiple, erythematous , irregular, rough, macules or papules with dry adherent scales. Sometimes as cutaneous horn. Surrounding skin photodamaged. Ref Harrison20th edition pg 1236
Actinic Keratoses
Seborrheic Keratoses
Molluscum contagiosum
Basal cell carcinoma
Anatomy of skin