Abstract
A 60-year-old woman was admitted with the chief complaints of abdominal distention, vomiting and loss of appetite. From physical examination and CT findings, superior mesenteric artery syndrome was diagnosed. Following conservative treatment, symptomatic improvement was seen, and she was discharged. However, 7 days later, she was re-admitted due to recurrence of abdominal distention, vomiting and loss of appetite. Abdominal CT revealed a dilated bowel between the body of the stomach and the horizontal portion of the duodenum, and a mass lesion was suspected in coronal section at the distal end, i.e., in the jejunum. This lesion appeared as a high-intensity area in both high and low b-value diffusion weighted images (DWI). A primary small intestinal malignant tumor was diagnosed at the stage. Partial resection of small bowel was performed and a diagnosis of primary small intestinal carcinoma was obtained from the histopathology. We present this report because DWI was useful for a diagnosis of primary small intestinal carcinoma.
