Halo and pseudo-halo melanoma.

Suzuki N, Dalapicola M, Argenziano G, Lallas A, Longo C, Piana S, Ferrara G, Raucci M, Moscarella E. J Am Acad Dermatol. 2016 Apr;74(4):e59-61. doi: 10.1016/j.jaad.2015.09.027


In case 1, a 34-year-old man had a pigmented lesion on his abdomen surrounded by an incomplete whitish halo (Fig 1, A and B). In case 2, a 59-year-old woman had a dark-brown papule on her leg, surrounded by a symmetric whitish halo. She claimed to have applied sunscreen to protect the "mole" (Fig 1, C and D).

KEYWORDS: dermoscopy; halo phenomenon; melanoma; reflectance confocal microscopy; regression; sunscreen