Case Report: A rare small bowel sarcoma

Intestinal sarcomas are rare gastrointestinal tumors but their etiology is not clear. A middle-aged man was admitted to hospital on 11 April 2023 because of intermittent melena for 1 month. Gastroscopy and colonoscopy were inconclusive, however, melena persisted. Abdominal magnetic resonance imaging...

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Main Authors: Jiwu Guo, Jie Mao
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-03-01
Series:Frontiers in Surgery
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Online Access:https://www.frontiersin.org/articles/10.3389/fsurg.2025.1456485/full
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author Jiwu Guo
Jie Mao
author_facet Jiwu Guo
Jie Mao
author_sort Jiwu Guo
collection DOAJ
description Intestinal sarcomas are rare gastrointestinal tumors but their etiology is not clear. A middle-aged man was admitted to hospital on 11 April 2023 because of intermittent melena for 1 month. Gastroscopy and colonoscopy were inconclusive, however, melena persisted. Abdominal magnetic resonance imaging indicated a left mid-abdominal mass and lymphoma of the small bowel origin. Small bowel enteroscopy revealed infiltrating periannular ulcer lesions in the jejunum. He underwent an operation and a partial resection of the small intestine was performed. The pathological examination revealed mesenchymal, highly malignant, poorly differentiated sarcoma. The patient died 6 months after surgery. The patient had been diagnosed with hepatocellular cancer and received immune checkpoint inhibitors (PD-1, sintilimab) combined with bevacizumab for 14 cycles 19 months before being diagnosed with intestinal sarcoma, and achieved complete remission. While immunotherapy achieves good therapeutic effects, another problem that has to be paid attention to is immune-related adverse reactions, which involve multiple systems. Based on the above information, we believe that this small bowel sarcoma was a rare complication of immunotherapy.
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spelling doaj-art-83dd68751e334a5e85e7c7fb84f04f0c2025-08-20T02:47:45ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2025-03-011210.3389/fsurg.2025.14564851456485Case Report: A rare small bowel sarcomaJiwu GuoJie MaoIntestinal sarcomas are rare gastrointestinal tumors but their etiology is not clear. A middle-aged man was admitted to hospital on 11 April 2023 because of intermittent melena for 1 month. Gastroscopy and colonoscopy were inconclusive, however, melena persisted. Abdominal magnetic resonance imaging indicated a left mid-abdominal mass and lymphoma of the small bowel origin. Small bowel enteroscopy revealed infiltrating periannular ulcer lesions in the jejunum. He underwent an operation and a partial resection of the small intestine was performed. The pathological examination revealed mesenchymal, highly malignant, poorly differentiated sarcoma. The patient died 6 months after surgery. The patient had been diagnosed with hepatocellular cancer and received immune checkpoint inhibitors (PD-1, sintilimab) combined with bevacizumab for 14 cycles 19 months before being diagnosed with intestinal sarcoma, and achieved complete remission. While immunotherapy achieves good therapeutic effects, another problem that has to be paid attention to is immune-related adverse reactions, which involve multiple systems. Based on the above information, we believe that this small bowel sarcoma was a rare complication of immunotherapy.https://www.frontiersin.org/articles/10.3389/fsurg.2025.1456485/fullsmall bowel sarcomahepatocellular cancerimmune checkpoint inhibitorsimmune-related adverse reactionscase report
spellingShingle Jiwu Guo
Jie Mao
Case Report: A rare small bowel sarcoma
Frontiers in Surgery
small bowel sarcoma
hepatocellular cancer
immune checkpoint inhibitors
immune-related adverse reactions
case report
title Case Report: A rare small bowel sarcoma
title_full Case Report: A rare small bowel sarcoma
title_fullStr Case Report: A rare small bowel sarcoma
title_full_unstemmed Case Report: A rare small bowel sarcoma
title_short Case Report: A rare small bowel sarcoma
title_sort case report a rare small bowel sarcoma
topic small bowel sarcoma
hepatocellular cancer
immune checkpoint inhibitors
immune-related adverse reactions
case report
url https://www.frontiersin.org/articles/10.3389/fsurg.2025.1456485/full
work_keys_str_mv AT jiwuguo casereportararesmallbowelsarcoma
AT jiemao casereportararesmallbowelsarcoma