Multidermatomal nevus comedonicus: How dermoscopy aids diagnosis?

Nevus Comedonicus (NC)is a rare subtype of epidermal nevus considered as a variant of adnexal hamartoma that presents as grouped hyperkeratotic papular lesions with appearance similar to comedones. Lesions usually present at birth but involvement can occur any time up to middle age. Here we report a case of NC in 16 year old female occurring after puberty. We report this case because of its multidermatomal involvement, strictly unilaterally distributed lesions with progressive pubertal enlargement showing characteristic features of NC on dermoscopy, thereby helping to differentiate it from other diseases with similar clinical presentation