Although a diagnosis can usually be made without further investigation, other congenital melanocytic nevi can present in similar locations. A café-au-lait patch can present on the face, but its ...

The man’s nasal lesion was in all likelihood a blue nevus. Blue nevi are visible manifestations of dermal melanocytosis that occur in solitary blue or gray-blue papules. The most common sites of ...

An epidermal nevus is considered a hamartoma of the epidermis and papillary dermis. The two forms of epidermal nevus are the nonorganoid and the organoid versions. The latter consists of nevus ...

Nevus of Ota, or nevus fuscoceruleus ophthalmomaxillaris, is a dermal melanocytic hamartoma that presents as bluish hyperpigmentation along the first or second branches of the trigeminal nerve.