A MESENTERIC CYST OF THE TRANSVERSE COLON-A CASE REPORT-

We report a case of a mesenteric cyst. A 49-year-old woman visited her home doctor because of abdominal pain. Because an abdominal cystic tumor was suggested, the patient referred to our hospital. By using abdominal ultrasonography, computed tomography, and angiography, she was diagnosed as having either a mesenteric cyst or an omental cyst, and an operation was performed. The tumor was found in the posterior side of the transverse mesocolon, but no communication with transverse colon or other organs was observed. The tumor was extirpated completely. The tumor was a unilocular cystic mass, and was filled with light-yellowish serous fluid. The histopathological diagnosis was a mesenteric cyst. A diagnosis of cystic mesothelioma was confirmed from the positive findings to immunochemical staining with EMA, cytokeratin, thrombomodulin, and vimentin. Adult mesenteric cysts are relatively rare. This paper describes such a case with a review of the literature.