Fibroadenoma of the vulva. Report of a case.

A case of fibroadenoma occurring in the vulva of a 24 year old woman is presented. This rare benign tumor appears as dermal or subcutaneous well circumscribed nodule. Histologically the fibroadenoma is characterized by epithelial and stromal proliferation. Two different concepts concerning histogenesis are cited; the authors believe that this tumor arises in ectopic mammary tissue.