Newborn with vomiting who had a triple bubble sign on prenatal US Pediatric Imaging Gastrointestinal July 23, 2023June 15, 2023 Early (above) image from an UGI exam shows dilation of the stomach, duodenum, and proximal jejunum. Later image from the same exam (below) shows contrast progressing through the remainder of the jejunum, which is of a normal caliber. The diagnosis was jejunal stenosis. Related Published July 23, 2023June 15, 2023