Pelvic primitive neuroectodermal tumor associated with a cluster of small round cell tumors: case report and review of current literature

A rare case of pelvic primitive neuroectodermal tumor with misleading symptoms: A case report

Peripheral Primitive NeuroEctodermal Tumors (pPNETs) are rare highly malignant tumors; originating from the neuroectoderm. Although PNETs may arise in various locations (most commonly in the extremities), very few cases have been reported in the pelvis. There is still poor evidence about the management of these tumors in the literature.

We present a rare case of pelvic PNET in a 20-year-old male. The patient presented with symptoms mimicking a lumbar disk hernia, which delayed the diagnosis. He was managed with a combination of a debulking procedure, adjuvant chemotherapy, radiotherapy; and has been in remission for 2 years upon follow-up.

This case highlights the importance of diagnosing such aggressive tumors as early as possible (as prognosis may vary significantly), and the challenge in the management of PNETs due to poor evidence.

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Primitive NeuroEctodermal Tumors (PNET) are highly malignant tumors that generally manifest in the extremities.

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Clinical symptoms are usually due to mass effect and depend on the site of presentation, but can sometimes be misleading.

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There is still poor evidence about the management of PNET in the existing literature.

Primitive Neuroectodermal Tumor of the Vulva in an Adolescent Girl

Extraskeletal primitive neuroectodermal tumor (PNET) is rare and that affecting the female genital tract is extremely rare. We report the case of a 17-year-old girl who presented with swelling of the clitorus. She underwent excision and histopathology was PNET. She received chemotherapy and radiation and achieved complete remission. However, she relapsed locally and systemically soon, progressed and died.