A Clinical Study of 119 Cases of Congenital Melanocytic Nevi

Kim, Kun Woo; Lee, Jun Young; Oh, Young Jin; Ko, Ik Jun; Cho, Baik Kee; Houh, Won

Abstract

One hundred and nineteen cases of congenital melanocytic nevi diagnosed clinically and/or histopathologically st Departments of Dermatology, Plastic surgery and Pedia trics of 7 branch hospitals of Catholic University Medical College from October, 1986 to October, 1988 were reviewed by their incidence, distribution, age, size and elinical findings. The results were summarized as follows . l. Among 2g73 newborn babies, 33(1.5%) melanocytic nevi were found clinically. 2. Amomg 119 congenital melanocytie nevi, 31 located on the head and neck area, 47 on the trunk, and 41 on the extremities. 3. Thirty (252%) were less than 0.6cm in greatest diameter, 42(353%) nevi 0.6 to 15cm, 15(12.7%) nevi 1.6 to 3.0cm, 26(218%) nevi 3.1 to 10.0cm and 6(5.0%) nevi greater than 10.0cm. 4. a) Seventy three nevi(613%) were uniform in color and 46(38.7%) were mixed brown r black with variable proportion. b) Fifty three(44.5%) nevi were flat, 36(303%) were slightly elevated, 17(14.3%) had pebble stone appearance and 13(10.9%) were dorne shaped. c)Thirteen(11%) nevi had terminal hair on the surface.