Which skin tumor is k/a "Turban tumor" ?

Ans. is 'c' i.e., Cutaneous cylindroma In dermatologic pathology, a dermal cylindroma, also dermal eccrine cylindroma) and (less specifically) cylindroma, is a benign adnexal tumor, which occurs on the scalp and forehead.Multiple cylindromas may grow together in a "hat-like" configuration, sometimes referred to as a turban tumor.