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Establishment and Characterization of Small Bowel Neuroendocrine Tumor Spheroids
Published on: October 14, 2019
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Malignant gastrointestinal neuroectodermal tumor presenting with small intestinal obstruction: A case report.
Makiko Sasaki1,2, Mamoru Tanaka2, Koki Asukai1
1Department of Gastroenterology Japan Community Health Care Organization Chukyo Hospital Aichi Japan.
DEN Open
|July 25, 2022
Summary
Malignant gastrointestinal neuroectodermal tumors (GNETs) are rare, aggressive neoplasms. This report details a rare case of GNET in the small bowel diagnosed via enteroscopy before surgery.
Area of Science:
- Gastroenterology and Oncology
- Rare Tumor Pathophysiology
Background:
- Malignant gastrointestinal neuroectodermal tumors (GNETs) are exceptionally rare mesenchymal neoplasms with aggressive behavior.
- Fewer than 100 cases of GNET have been documented globally, highlighting their rarity.
- Histological overlap exists between GNET and clear cell sarcoma, necessitating precise diagnostic markers.
Observation:
- A 69-year-old male presented with abdominal pain and vomiting, indicative of small intestinal obstruction.
- Computed tomography identified a small bowel nodule, confirmed as a submucosal tumor via enteroscopy.
- This case represents a rare instance of GNET originating in the small intestine.
Findings:
- The patient was diagnosed with GNET following surgical intervention.
- Diagnostic enteroscopy was performed pre-surgery, a procedure rarely utilized for small intestinal GNET.
- GNETs are distinguished from clear cell sarcoma by the absence of melanocyte-specific markers.
Implications:
- This case underscores the importance of advanced imaging and endoscopic techniques in diagnosing rare gastrointestinal tumors.
- The successful pre-operative diagnosis via enteroscopy offers insights into managing similar rare GNET cases.
- Further research into GNET's unique characteristics and diagnostic pathways is warranted.
