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Neonatal treatment of giant naevi.

A technique of curettage of giant congenital naevi in newborns was proposed by Moss in 1987. We used this technique in 6 children during the last 2 years. The long-term aesthetic results appear to be better than those observed after other methods of treatment. Light microscopy of the pigmented skin confirmed the presence of the majority of naevus cells in the upper dermis. For 3 patients, cultures of the curetted cells showed a melanocyte behaviour similar to that seen in malignant melanoma. These observations are limited to in vitro cultures and are not representative of the in vivo evolution as biopsies of the remaining naevus cells at 3 months of age did not show any malignant characteristics.