Agminated blue nevus - Case report

• Author(s): Lisboa,Alice Paixão ; Silvestre,Keline Jácome ; Pedreira,Renata Leite ; Alves,Natália Ribeiro de Magalhães ; Obadia,Daniel Lago ; Azulay-Abulafia,Luna
• Date: 2016
• Origin: Oasisbr
• Subject(s): Melanocytes; Nevus, Blue; Nevi and Melanomas
• Document Type: Report
• Language: English

Description

Abstract: Blue nevi are benign melanocytic lesions located in the deeper reticular dermis, consequence of failure of melanocytic migration into the dermal-epidermal junction from the neural crest. Lesions are usually asymptomatic and solitary, but may present in a multiple or agminated (grouped) pattern. The agminated subtype is formed when bluish-pigmented lesions cluster together in a well-defined area. Lesions can be flat or raised. We report the case of a patient who presented multiple bluish macules (1-3 mm in diameter) grouped on the left upper back. Dermoscopy and anatomic pathological examination were consistent with blue nevus.