Of 108 women treated for vulvar intraepithelial neoplasia between 1977 and 1984 at the Irvine Medical Center, University of California, and the Memorial Medical Center of Long Beach, Women's Hospital, 48 with multifocal and/or widespread lesions underwent skinning vulvectomy and split thickness skin graft reconstruction. Six women in the skinning vulvectomy sample had early stromal invasion in the vulvectomy specimen. Recurrences at intervals of four to 87 months occurred in 13 patients undergoing this procedure. The risk of recurrence did not appear to be related to the status of the surgical margins because seven of 22 patients with involved margins experienced recurrence compared with six of 26 with uninvolved margins.