Abstract
Primary small intestinal cancer is a comparatively rare malignant tumor of the digestive tract and can often be diagnosable upon laparotomy for ileus, acute abdomen and the like. The auther recently experienced a case of primary small intestinal cancer presenting aneurysmoid growth pattern without causing luminal stenosis.
The case was a 57-year-old man, who came to the hospital with fever and anemia. Abdominal US and CT revealed a tumor of 7cm in diameter in the right hypogastric lesion.
The patient was operated on under the diagnosis of intraperitoneal tumor. The tumor was found adorally about 20cm from the terminal ileum; it infiltrated into and proliferated all over the intestinal canal wall, but with dilated intestinal canal lumen and aneurysmoid growth causing no canal obstruction. Pathohistologically, it was papillary adenocarcinoma.
