PMC7413825_01
PMC7413825_02
Dilated stomach at 5 weeks of age.
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PMC7413825_02_10-1055-s-0040-1713809-i190507cr-1.jpg
FI190507cr-1
A radiography and an upper gastrointestinal (GI) study were performed at 5 weeks of age, and showed a stagnation of contrast in the dilated stomach and minimal passage to the duodenum ( Figs. 1 and 2 ). 
Dilated stomach and minimal passage of the contrast to the duodenum at 5 weeks of age.
10-1055-s-0040-1713809-i190507cr-2.jpg
PMC7413825_02_10-1055-s-0040-1713809-i190507cr-2.jpg
FI190507cr-2
A radiography and an upper gastrointestinal (GI) study were performed at 5 weeks of age, and showed a stagnation of contrast in the dilated stomach and minimal passage to the duodenum ( Figs. 1 and 2 ). 
PMC7413825_03
Laparoscopic view of the mucosal diaphragm (arrow). a, proximal part (stomach); b, distal part (duodenum).
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PMC7413825_03_10-1055-s-0040-1713809-i190507cr-3.jpg
FI190507cr-3
With the help of this peroperative "laparoscopic" approach, we identified a mucosal fold within the pylorus ( Fig. 3 ).