Recurrence, evolution, and re-excision of moderately dysplastic nevi

To the Editor: I read with great interest the fascinating and valuable article by Hiscox et al on recurrence of moderately dysplastic nevi (MDN).1 The authors argue that their findings "support the conclusion of the Pigmented Lesion Subcommittee that incompletely excised MDN do not require re-excision." While the authors' study indeed adds to the literature, and supports the findings of another recent study2 assessing a similar clinical question, several important caveats should be noted.

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