Introduction:

Fibroadenoma is a fairly common lesion in the breast tissue, but its location in the vulvar region is extremely rare, with about 60 specific cases in the literature. It is presented as a unilateral, subcutaneous and asymptomatic mass, with insidious growth. The size of this type of lesion is between 1 and 12 cm in the cases reported to date. Despite being infrequent, vulvar tumors continue to be important reasons for medical consultation. The histogenesis of this type of lesions has been the subject of discussion in recent years; two theories stand out: the presence of ectopic breast tissue, and tumor degeneration of a group of glands similar to breast tissue described as a common component of the region.

Objective:

To providea polemic differencial diagnosis of vulvar tumors.

Case presentation:

We present a 22-year-old patient with histopathological diagnosis of vulvar fibroadenoma. Excision of the lesion was performed, which at the macroscopic examination measured approximately 15 cm in its longitudinal axis (the largest reported in the literature).

Conclusions:

Despite its low frequency of presentation, vulvar fibroadenoma needs to be considered as differencial diagnosis of vulvar tumors.

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