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Published on: April 3, 2026
Extraskeletal myxoid chondrosarcoma with small bowel metastasis causing bowel obstruction
Ernesto Bustinza-Linares1, Francisco Socola, Vinicius Ernani
1Division of Hematology and Oncology, Department of Medicine, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL 33136, USA.
This case report details the first instance of extraskeletal myxoid chondrosarcoma (EMC) metastasizing to the small bowel. The rare cancer presented as a brain tumor and gastrointestinal lesions, highlighting its aggressive potential.
Area of Science:
- Oncology
- Gastroenterology
- Pathology
Background:
- Extraskeletal myxoid chondrosarcoma (EMC) is a rare soft-tissue sarcoma.
- While often considered low-grade, EMC can exhibit aggressive behavior.
- Metastasis of EMC to the small bowel has not been previously documented.
Purpose of the Study:
- To report the first documented case of extraskeletal myxoid chondrosarcoma (EMC) metastasizing to the small bowel.
- To describe the clinical presentation, diagnostic challenges, and management of this rare oncologic event.
- To contribute to the understanding of EMC's metastatic potential and behavior.
Main Methods:
- Case report of a 28-year-old female with a history of chest wall EMC.
- Diagnostic workup included laboratory tests, upper and lower endoscopies, and CT scans.
- Surgical resection of brain and small bowel masses followed by histopathological analysis.
Main Results:
- The patient presented with neurological symptoms and anemia, initially attributed to gastrointestinal bleeding.
- Brain imaging revealed a large frontal mass, and subsequent CT identified small bowel and duodenal lesions.
- Pathology confirmed metastatic extraskeletal myxoid chondrosarcoma (grade 2/3) in the small bowel and mesenteric fat.
Conclusions:
- This case represents the first report of extraskeletal myxoid chondrosarcoma (EMC) metastasizing to the small bowel.
- Metastatic EMC can present with diverse and potentially life-threatening manifestations, including neurological deficits.
- Further research is needed to understand the patterns and implications of EMC metastasis.
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