Ultrasound in the Diagnosis of Idiopathic Hypertrophic Pyloric Stenosis

Abstract

Abdominal ultrasonic examination of babies with idiopathic hypertrophic pyloric stenosis can establish the diagnosis when careful clinical and radiographic examination fails. Clinical examination of the typical baby with pyloric stenosis reveals a palpable "olive" in the right upper quadrant.1 Classic radiographic features on upper gastrointestinal study include elongation of the pyloric channel, indentation of both duodenal bulb and gastric antrum by the pyloric mass, and gastric hyperperistalsis that stops abruptly at the pylorus.1 , 2 In some babies who do not fit this classic profile, ultrasonic examination can establish the diagnosis by demonstrating the pyloric tumor in the upper abdomen.We studied . . .