Abdominal ultrasonography revealed that the patient had diffuse, increasing parenchymal echogenicity of the liver, jejunal hypersecretion, and jejunal wall thickness at the umbilical level. There was some fluid collection at the interjejunal spaces. Computed tomography of the abdomen and pelvis showed that there was dilatation on fourth part of the duodenum, jejunum, and ileum. Fluid collection and wall thickness between mesenteric folds of the ileum at the umbilical level were detected. No luminal lesion was found, however. Amorphous calcifications approximately 1 to 1.5 cm in diameter were indicated at the caudal end of the mesentery near the ileocecal junction, anterior to the psoas muscle. Diagnostic tests revealed that the pelvic organs were normal. Radiological diagnosis was reported as mesenteritis or internal herniation. Colonoscopy findings for the patient were normal. Explorative laparotomy was planned for the patient after initial examinations.