Differential Diagnosis of a Unique Vulvar Mass in an Adolescent.

Chow, Stephanie; Doyle, Alexis; Hammer, Phoebe; Tyson, Nichole A · Obstet Gynecol · 2021

case_report · Level V

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Abstract

Vulvar masses in adolescents have a broad differential diagnosis, yet few reports exist detailing masses of mammary origin. A nulliparous, healthy 16-year-old adolescent presented with a longstanding, ulcerated, 17-cm vulvar mass of unknown origin and pronounced inguinal lymphadenopathy. The patient underwent a left radical partial vulvectomy, with pathology revealing terminal duct lobular units consistent with polymastia. Differential diagnosis of a vulvar mass in an adolescent should include polymastia.

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