脾臓原発Inflammatory pseudotumorの1例

A case of inflammatory pseudotumor of the spleen is reported. This benign tumor in the spleen is rare. To our knowledge, 68 cases had been reported in the literature and 26 cases in the japanese literature. A splenic mass was incidentally detected by abdominal CT scan during the examination of the preoperative course of cholecystectomy for cholecystlithiasis. An abdominal CT scan revealed an slightly low density mass in the spleen, and MRI showed a low intensity mass. Cholecystectomy and extirpation of spelenic tumor was performed and the tumor measured 45×35×25mm in size. The tumor was diagnosed histologically as a inflammatory pseudotumor of the spleen.