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To the Editor:
—The excellent report of a meticulous study by Dr. Allyn et al (p. 890 this issue of The Journal) represents the sixth in the past decade that has been concerned with the prevalence of palmar and plantar pigmented nevi.Relatively minor discrepancies exist among these reports. For instance, Dr. Allyn and co-workers find that plantar nevi are concentrated on the arch region. Knowing this in advance, I recently reviewed the raw data of our study reported several years ago and found that 43% of the plantar nevi recorded were on the arch. The drawings of Dr. Allyn show 70% on the arch. Perhaps this difference relates to where lines separating the arch from the rest of the plantar surface were drawn in each study; or perhaps a much larger series of subjects is necessary to determine true local distribution.Despite minor differences among reports, the conclusion of
Van Scott EJ. Pigmented Nevi. JAMA. 1963;186(10):958. doi:10.1001/jama.1963.03710100096025