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 ...

A patient recently came in to ask about a dark spot on her leg that was different from the rest of her moles. The doo-dad in question was a blue-black, very symmetric slight bump on her leg, which had ...