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 ...

Blue nevi are a category of melanocytic tumors, which arise from the proliferation of dermal dendritic melanocytes to form an acquired pigmented mole. They are also called pigmented nevi, ...

A 31-year-old man presented to the dermatology clinic with a lifetime history of painful blue nodules that were distributed throughout his body and bled easily. His uncle had similar lesions, as did ...

Melanocytes arise from neural crest cells and populate the epidermis through migration. In all dermal melanocytosis subtypes, melanocyte migration is believed to be arrested in the dermis, leading to ...

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 ...

A WOMAN who mistakenly thought her son had doodled on her head had her life saved by her hairdresser. Lee King was having her hair done when the stylist noticed a 10p-size mark on her scalp. Please ...

Epidermal nevi are grouped by their clinical features, by the site of occurrence, and their extent of spread, but mostly by which epidermal cell predominates in the lesion. In some patients, multiple ...

Blue Rubber Bleb Nevus Syndrome (BRBNS) is a rare vascular disorder characterised by multifocal venous malformations that most notably affect the skin and gastrointestinal tract. These lesions, often ...