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Case ReportCASE REPORTS AND CLINICAL OBSERVATIONS
Open Access

Ewing Sarcoma/Primitive Neuroectodermal Tumor Involving the Duodenum

Dawood A. Tafti, Ilsup Yoon, Jesse Fitzgerald, Adam Graeber and Paul Clark
Ochsner Journal March 2022, 22 (1) 94-99; DOI: https://doi.org/10.31486/toj.21.0040
Dawood A. Tafti
1Department of Radiology, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX
MD
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  • For correspondence: dtafti121@gmail.com
Ilsup Yoon
1Department of Radiology, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX
MD
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Jesse Fitzgerald
2Department of Pathology, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX
DO
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Adam Graeber
1Department of Radiology, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX
MD
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Paul Clark
1Department of Radiology, Brooke Army Medical Center, Fort Sam Houston, San Antonio, TX
DO
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Abstract

Background: Ewing sarcoma/primitive neuroectodermal tumor (ES/PNET) is a soft tissue malignancy arising from the neuroectoderm. While the locations of these extraskeletal manifestations are diverse, origin from the small bowel and small bowel mesentery is extremely rare. Intra-abdominal manifestations of ES/PNETs are nonspecific, and patients present with a wide range of symptoms, most frequently vague abdominal pain.

Case Report: A 66-year-old female initially presented with vague and nonspecific symptoms of hypotension, anemia, dyspnea, and coffee-ground emesis. Imaging workup with computed tomography and fluorodeoxyglucose positron emission tomography demonstrated a metabolically active large mass involving the duodenum and measuring 10.3 × 8.8 × 12.3 cm. The mass was characterized as an ES/PNET on histopathologic diagnosis. The patient was treated with chemotherapy followed by radical resection and was disease-free at 1 year postpresentation.

Conclusion: This case highlights that while ES/PNETs are rare tumors of the abdomen, they should be considered in cases of large soft tissue masses in patients presenting with nonspecific symptoms. To the best of our knowledge, this case is the fourth report in the literature of an ES/PNET involving the duodenum.

Keywords:
  • Abdominal pain
  • duodenum
  • neuroectodermal tumors–primitive
  • sarcoma–Ewing
  • ©2022 by the author(s); Creative Commons Attribution License (CC BY)

©2022 by the author(s); licensee Ochsner Journal, Ochsner Clinic Foundation, New Orleans, LA. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (creativecommons.org/licenses/by/4.0/legalcode) that permits unrestricted use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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Ewing Sarcoma/Primitive Neuroectodermal Tumor Involving the Duodenum
Dawood A. Tafti, Ilsup Yoon, Jesse Fitzgerald, Adam Graeber, Paul Clark
Ochsner Journal Mar 2022, 22 (1) 94-99; DOI: 10.31486/toj.21.0040

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Ewing Sarcoma/Primitive Neuroectodermal Tumor Involving the Duodenum
Dawood A. Tafti, Ilsup Yoon, Jesse Fitzgerald, Adam Graeber, Paul Clark
Ochsner Journal Mar 2022, 22 (1) 94-99; DOI: 10.31486/toj.21.0040
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Keywords

  • Abdominal pain
  • duodenum
  • neuroectodermal tumors–primitive
  • sarcoma–Ewing

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