J Gastric Cancer.  2012 Mar;12(1):43-45.

Mesenteric Pseudocyst of the Small Bowel in Gastric Cancer Patient: A Case Report

• Lee SE
• Choi IS
• Choi WJ
• Yoon DS
• Moon JI
• Ra YM
• Min HS
• Kim YS
• Kim SM
• Sohn JS
• Lee BS

Abstract

Mesenteric pseudocyst is rare. This term is used to describe the abdominal cystic mass, without the origin of abdominal organ. We presented a case of mesenteric pseudocyst of the small bowel in a 70-year-old man. Esophago-gastro-duodenoscopy showed a 3.5 cm sized excavated lesion on the posterior wall of angle. Endocopic biopsy confirmed a histologic diagnosis of the poorly differentiated adenocarcinoma, which includes the signet ring cell component. Abdominal computed tomography scan showed a focal mucosal enhancement in the posterior wall of angle of the stomach, a 2.4 cm sized enhancing mass on the distal small bowel loop, without distant metastases or ascites in rectal shelf, and multiple gallbladder stones. The patient underwent subtotal gastrectomy with gastroduodenostomy, segmental resection of the small bowel, and cholecystectomy. The final pathological diagnosis was mesenteric pseudocyst. This is the first case report describing incidentally detected mesenteric pseudocyst of the small bowel in gastric cancer patients.

Keyword

Mesenteric cyst; Stomach neoplasms; Pseudocyst

MeSH Terms

Adenocarcinoma
Aged
Ascites
Biopsy
Cellular Structures
Cholecystectomy
Gallbladder
Gastrectomy
Humans
Mesenteric Cyst
Neoplasm Metastasis
Stomach
Stomach Neoplasms

Figure

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  Fig. 1 Preoperative computed tomography.

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  Fig. 2 Fibrous cystic wall without specific endothelial or epithelial lining epithelium. Cystic content shows cholesterol cleft (H&E, ×12.5).

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  Fig. 3 Fibrous cystic wall and focal foam cell collection (H&E, ×40).

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