Management of carcinoma in situ of the vulva.

Concern about multicentricity and occult invasion has led authorities to recommend total vulvectomy in the management of carcinoma in situ of the vulva (VCIS). Of these considerations, only occult invasion has sufficient import to contraindicate a more conservative therapeutic approach. VCIS is being diagnosed with increasing frequency in young women for whom the deforming and sexually crippling effects of vulvectomy are especially repugnant. Because of its distinctive success in localizing preinvasive and early invasive squamous neoplasia of the cervix, colposcopy and directed biopsy were employed in evaluating all patients seen in our vulva clinic since 1971. Of 27 consecutive patients considered to have VCIS, 24 were treated either by local excision, skinning vulvectomy, topical 5-fluorouracil (5-FU), or cryosurgery. In no instance was occult invasion missed on pretreatment evaluation, and only one patient has developed a new in-situ lesion following conservative surgical therapy. Topical 5-FU therapy was unsuccessful in six of six cases. These results demonstrate that total vulvectomy for VCIS can be replaced successfully with more conservative operations.