A 26-year-old male kidney transplant recipient. Multiple brown keratotic papules are seen on the forehead and scalp. Which of the following is the common cause?

Ans. c. HPV subtype 3, 10Types of wartsCommentsHPV subtypesDeep plantar wart (myrmecia warts)Painful, keratotic with central depression1Superficial plantar wart (mosaic warts)Painless, multiple, confluent2Plane warts (verruca plana)Flat, smooth, common in children, site face3, 10Common warts (verruca vulgaris)Most common, single/multiple irregular verrucous papules variant: periungual warts which may distort nails2 > 4Epidermodysplasia verruciformis2 types of lesions (plane wart like and pityriasis versicolor like). May develop malignancy in sun-exposed parts Inherited: Autosomal recessive5, 8Anogenital wartsSexually transmitted6 >11 (low oncogenic potential)As here the patient is suffering from verruca plana (P=3), so ans is C=3,10.