Benign vulvar tumors.

Benign tumors and "dark lesions" accounted for 22% of vulvar disease seen in the Vulvar Clinic at the Milwaukee County Medical Complex over an 8-year period. Biopsy confirmation was obtained for 269 lesions. The order of frequency of lesions in this study was as follows: epidermal inclusion cyst, lentigo, Bartholin's duct obstruction, carcinoma in situ, melanocytic nevi, acrochordon, mucous cyst, hemangiomas, postinflammatory hyperpigmentation, seborrheic keratoses, varicosities, hidradenomas, verruca, basal cell carcinoma, and, last, unusual tumors such as neurofibromas, ectopic tissue, syringomas, and abscesses. The variability in clinical appearance of vulvar tumors suggests that biopsy confirmation should be obtained on all lesions for which there is the least doubt regarding the diagnosis.