Surgery, Gastroenterology and Oncology
Vol. 26, Nr. 3, Sept 2021
Invasive Mucinous Noncystic Carcinoma of the Pancreas Arising in Intraductal Papillary Mucinous Neoplasm Presenting as a Huge Gastric Subepithelial Tumor: A Case Report
Il Hyun Baek, Mee Ja Park
Images in Clinical Medicine, Sept 2021
Article DOI: 10.21614/sgo-26-3-312
Introduction: Mucinous non-cystic carcinoma of the pancreas is a very scarce kind of pancreatic malignancy and usually occurs in the IPMN. Case presentation: An 82-year-old woman visited this hospital with black stool. Gastroscopy found a large subepithelial mass with bleeding in the upper part of the gastric body. It was diagnosed as mucinous carcinoma with signet ring cells by endoscopic biopsy. In abdominal computed tomography (CT), she was diagnosed with a large, poorly enhancing, hypodense pancreatic tail mass that protrudes into the upper gastric body wall, creating the shape of a subepithelial tumor. There were no abnormalities such as metastasis on PET, bone scans and chest CT. She underwent a distal pancreatectmy with gastrectomy, splenectomy, and cholecystectomy. As a result of the surgical pathology, it was found that mucinous non-cystic carcinoma (colloid) of the pancreas extended to the stomach, which was caused by an intraductal papillary mucinous neoplasm (IPMN).

Conclusion: We report a very rare case of colloid carcinoma of the pancreas expressed as a gastric subepithelial tumor. Up to now, there was no reported case of colloid carcinoma of the pancreas presenting gastric mass mimicking a subepithelial tumor.

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Surgery, Gastroenterology and Oncology is indexed in Scopus, CrossRef (DOI: 10.21614/sgo)

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