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Differential Diagnosis of a Unique Vulvar Mass in an Adolescent
Stephanie Chow1, Alexis Doyle, Phoebe Hammer
1Division of Gynecologic Oncology, the Department of Pathology, and the Division of Pediatric Adolescent Gynecology, Obstetrics and Gynecology, Stanford University School of Medicine, and the Stanford University School of Medicine, Stanford, California.
Background:
Vulvar masses in adolescents have a broad differential diagnosis, yet few reports exist detailing masses of mammary origin.
Case:
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.
Conclusion:
Differential diagnosis of a vulvar mass in an adolescent should include polymastia.
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