Nevus Comedonicus Suppurativa: A Report of a Novel Entity.

Nevus comedonicus and hidradenitis suppurativa (HS) are disorders of the pilosebaceous unit sharing a similar pathogenesis of follicular occlusion. To our knowledge, less than 10 cases of HS-like lesions complicating nevus comedonicus have been reported. We describe a six-year-old female child with congenital linear nevus comedonicus in the left axilla and groin, complicated by recurrent HS-like lesions in the two years prior to presenting to our clinic. After a meticulous review of the literature, we propose a novel term, nevus comedonicus suppurativa, for this clinical entity.