Radiographic examination showed almost total obstruction in the pyloric region with gastric distension. At operation the diagnosis of IHPS was confirmed. Case B.G. Sharp cut-off pyloric region causing obstruction. Radiographic examination showed a severe, constant narrowing 2.0cm in length in the pyloric region of the stomach, causing obstruction.
Muscular hypertrophy surrounding the narrowed lumen indents the stomach, causing concave defects.
The diagnosis of IHPS was confirmed at operation. M.M., male aged 10 days, was admitted with a history of vomiting since birth. There was a concave indentation of the base of the duodenal bulb. Muscular hypertrophy surrounding the latter indents the base of the duodenal bulb. A B Fig.