Further experience with the reflux examination of the small intestine and the experience of others, a typical example of which is found elsewhere in this issue of Radiology (p. 1051), support our original enthusiasm for this method of examination and confirm our opinion that the complete reflux method, though relatively new, when properly used is an additional powerful weapon in our diagnostic arsenal. The procedure has been described elsewhere in detail (2). In brief, one should use large-bore tubing and an effective retention device. A 2,000 cc enema of precisely suspended barium sulfate is then followed by 2,500 cc of saline. This pushes the barium into the small bowel, and one can fill it as far as the site of obstruction or the duodenum. The colon is then drained. Two points are important—first, the patient is completely comfortable after drainage and the examiner should then fluoroscope and palpate the abdomen. Particular attention should be paid to any previous or present area of tenderness. Second...