An Unusual Case of a Vulva Tumor in an Adolescent: A Case Report and Literature Review.

BACKGROUND: We present the case of a 15-year-old adolescent with swelling in the left vulva that was found to have a tumor measuring approximately 20x15 cm in her vulva. Ewing's sarcoma/primitive neuroectodermal tumors (ES/PNET) are rare and malignant. MATERIALS AND METHODS: Preoperative magnetic resonance imaging and computed tomography performed to screen for metastasis were negative. The mass was surgically excised in total. RESULTS: Immunohistochemistry showed the mass to be ES/PNET. The patient underwent positron emission tomography-computed tomography which revealed metastasis to inguinal lymph nodes and bone. While under chemotherapy for stage-4 ES/PNET, the patient was found to have lung metastasis. She died due to recurrent chemotherapy complications during treatment. CONCLUSIONS: This rare case highlights that significant of early diagnosis and multidisciplinary approach to treatment of ES/PNET cases.