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HOME > Clin Endosc > Volume 38(6); 2009 > Article
A Case of a Primitive Neuroectodermal Tumor Detected from a Duodenal Metastasis
Clinical Endoscopy 2009;38(6):356-359.
DOI: https://doi.org/
Published online: June 30, 2009
Department of Internal Medicine, Kyunghee University College of Medicine, Seoul, Korea
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A primitive neuroectodermal tumor (PNET) belongs to the Ewing's sarcoma family and is a malignant small round cell tumor of neural crest origin. The most common site of an extraosseous Ewing's sarcoma is in the soft tissue of the body and extremities. A PNET in the ovary is uncommon. A PNET in the ovary is most often found with a metastasis and the prognosis is poor. The diagnosis of this tumor is confirmed following a pathohistological examination of tissue obtained after an open biopsy or surgery, but no case of a PNET has been diagnosed by the use of endoscopy in Korea. We present a case of a primitive neuroectodermal tumor of the ovary, which metastasized to the duodenum as diagnosed by use of an endoscopic biopsy in a 32-year-old woman who presented with abdominal discomfort. (Korean J Gastrointest Endosc 2009;38:356-359)


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