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In our article we did not mean to imply that the lack of inflammatory infiltrate is characteristic of halo congenital nevus. During the past three years I have collected 17 new cases of noninflammatory halo nevi; 14 of these were acquired nevi and three were congenital nevi.The 17 noninflammatory halo nevi had been present from a few weeks to a few years, and occurred in nine male and eight female patients, aged 12 to 31 years, with a median of 19 years. Seven noninflammatory halo nevi were on the back, three on the chest, two on the abdomen, two on the arm, two on the face, and one on the neck. In one patient, halos developed about several other nevi.In addition to a large number of halo nevi showing the "typical" (inflammatory) histologic pattern, I have seen examples of the "halo nevus phenomenon" microscopically in which
Brownstein MH. Halo Nevi Without Dermal Infiltrate-Reply. Arch Dermatol. 1978;114(11):1718. doi:10.1001/archderm.1978.01640230088036