Localized Cutaneous Argyria Mimicking Blue Nevus after Wearing Earrings

Argyria mimicking a blue nevis: dermoscopy features*

Argyria is a rare disease caused by prolonged skin contact with silver. Localized cases have been described regarding the use of topical medications, and trauma with objects containing this metal such as acupuncture needles and jewelry. Clinically, a macule or a patch, round or oval, appears in the infected area, with a characteristic bluey-gray color. To our knowledge this is the first time th...

Localized cutaneous argyria: a report of 2 cases.

Chronic cutaneous leishmaniasis induced after trauma, mimicking keloidal scar

Leishmaniasis is a common parasitic disease classified to acute and chronic types based on the duration of the disease. The acute lesion is presented as ulcerated papule and nodule that heal after a few months with an atrophic scar. The chronic form of cutaneous leishmaniasis is a nonhealing lesion that is persistent for more than one year. Here, we describe a chronic case of leishmaniasis deve...

Atypical cellular blue nevus or malignant blue nevus?*

Blue nevus is a benign melanocytic lesion whose most frequent variants are dendritic (common) blue nevus and cellular blue nevus. Atypical cellular blue nevus presents an intermediate histopathology between the typical and a rare variant of malignant blue nevus/melanoma arising in a cellular blue nevus. An 8-year-old child presented a pigmented lesion in the buttock since birth, but with progre...

Amelanotic blue nevus

CLINICAL PRESENTATION A 38-year-old woman presented to clinic with a solitary 6.53 4-mm sharply demarcated ivory-white papule on her left temple of unknown duration (Fig 1). The lesion had a smooth surface without scale or ulceration. Small perifollicular dells were also noted. The patient reported no symptoms but believed the lesion recently turned white. She had no other similarly appearing l...