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Updated: Jul 10, 2026

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models
Published on: May 17, 2024
Malignant peripheral nerve sheath tumor: an unusual cause of intussusception
Dana A Telem1, David Pertsemlidis
1The Mount Sinai Hospital, Department of Surgery, One Gustave Levy Plaza Box 1259, New York, NY 10029, USA. dana.telem@mssm.edu
Abstract:
Malignant peripheral nerve sheath tumors (MPNST) are defined as any tumor arising from a peripheral nerve or showing nerve sheath differentiation. The majority of these tumors arise on the trunk, extremities, or head and neck region. The literature to date has fewer than 14 cases of MPNST arising in the gastrointestinal tract, and only two cases were ever reported in the small intestine, one of which was a recurrent disease. In this paper, we report the first US case of an MPNST arising in the small intestine and presenting as intussusception.
Insights
Malignant peripheral nerve sheath tumors (MPNST) are rare in the gastrointestinal tract. This paper details the first US case of a small intestine MPNST presenting as intussusception.
Area of Science:
- Oncology
- Gastroenterology
- Surgical Pathology
Background:
- Malignant peripheral nerve sheath tumors (MPNST) are aggressive neoplasms originating from peripheral nerves or exhibiting nerve sheath differentiation.
- MPNSTs predominantly occur in the trunk, extremities, or head and neck, with rare occurrences reported in the gastrointestinal tract.
- Fewer than 14 cases of gastrointestinal MPNST have been documented, with only two reported in the small intestine, one being recurrent.
Observation:
- This report describes the first case of MPNST in the United States arising within the small intestine.
- The presented case involved an MPNST that manifested clinically as intussusception.
- Intussusception is a condition where one part of the intestine slides into another, often causing obstruction.
Findings:
- The study identifies a novel presentation of MPNST in the small intestine.
- This case highlights intussusception as a potential clinical sign of small intestinal MPNST.
- The tumor's origin and characteristics are detailed, contributing to the understanding of rare MPNST presentations.
Implications:
- This case expands the known spectrum of MPNST origins and clinical manifestations.
- Early recognition of intussusception in the context of potential MPNST is crucial for timely diagnosis and treatment.
- Further research into rare gastrointestinal MPNSTs is warranted to improve diagnostic and therapeutic strategies.
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