腸間膜脂肪織壊死による仮性腸間膜嚢胞の1例

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We report a case of jejunal mesenteric pseudocyst. The patient was a 31-year-old woman who was found to have microhematuria during a routine check-up. She visited the Department of Medicine at our hospital. An abdominal mass was found during an ultrasonography examination, and the patient was referred to our department for further examination and possible surgery. Computed tomography showed an intra-abdominal cyst. The preoperative diagnosis was dermoid cyst, and a cystectomy by laparotomy was performed. The cyst had originated from the mesentery of the jejunum. The surface of the 4-cm-diameter cyst was white, smooth, and hard. The unilocular cyst contained a cloudy yellow fluid. Microscopically, the wall of the cyst was composed of a thick, fibrous tissue, lymph follicles, and hyalinization. The cyst lacked an epithelial lining. These findings suggest that the cyst was a pseudocyst arising from fat necrosis of the jejunal mesentery. Pseudocysts of the mesentery are rare, and only 13 cases, including the present case, have been reported in Japan.
一般社団法人日本消化器外科学会の論文
2000-11-01