GASTRIC OUTLET OBSTRUCTION - UNUSUAL ULTRASONOGRAPHIC FINDINGS IN THEPYLORIC AND ANTRAL REGIONS

The authors present the cases of four infants aged 2-4 months with sym ptoms suggesting gastric outlet obstruction. All four had US evaluatio n of the antropyloric region and upper GI series. Three of them underw ent endoscopic investigations and three, surgery, US demonstrated hype rtrophied pyloric muscle and, above all, antropyloric abnormalities in all cases, namely a solid mass within the pyloric canal, hypertrophy of the pyloric mucosa in two cases and a double juxtapyloric cyst with an ulcer. Differential diagnosis of the sonographic images is discuss ed in each case.