Radiographic visualization of the pancreas is a difficult problem, but the direct visualization of the pancreas is possible by the injection of the amino-acid methionine tagged with selenium75 (Se75). In order to know the diagnostic value of pancreas scanning, scans were performed on 23 cases using selenium75-Selenomethionine. These cases were also given egg white, probanthine and morphine. 1) Good visualization of the pancreas scanning was observed on 19 cases, presumably with normal pancreas. 2) A case which showed diffusely decreased uptake on pancreas scanning was proven to have lesions in the bile duct and the gall bladder. 3) Of those two cases which showed localized cold area, ond had pancreas cyst and the other one was not explored. 4) A case which showed no visualization of the pacreas was proven to have pancreatic carcinoma. 5) Two cases which showed widened duodenal loop by upper gastro-intestinal series revealed normal pancreas scanning, and no pancreatic disease was found in both cases.