Treatment of vulvar carcinoma in situ with the CO2 laser.

Between January 1960 and December 1982, 142 patients with carcinoma in situ of the vulva were treated at Cedars-Sinai Medical Center and UCLA Medical Center. Primary treatment consisted of wide excision in 45 patients; vulvectomy in 23 patients; topical chemotherapy in 9 patients; and CO2 laser therapy in 42 patients. Twenty-three patients were also treated with the CO2 laser for recurrent disease. Multifocal disease was present in 59% of the cases. Lesions involving the posterior vulva recurred most commonly, for both initial and recurrent disease. Results utilizing the CO2 are compared with the other methods of treating carcinoma in situ of the vulva. The CO2 laser is well suited for treatment of both multifocal and unifocal vulvar lesions, as it allows for maximal retention of vulvar integrity with no decrease in therapeutic efficacy.