What are the tests for pyloric stenosis?

See below: Often, the history strongly points to this diagnosis. An abdominal us should reveal the abnormal area.

Ultrasound: For hypertrophic pyloric stenosis in babies, the most common tests include ultrasound and upper GI contrast study.

History+exam+/-U/S: The classic hypertrophic pyloric stenosis (hps) patient is a white baby boy age 2-8 wk presenting with progressive, projectile, nonbilious emesis after feelings. An exam may reveal a pyloric "olive" or mass deep in the upper abdomen. Hps can occur in blacks and girls but less commonly. A pyloric ultrasound is the most commonly used DX study -- it shows the markedly enlarged, thickened pylorus.

Ultrasound: Most common test for pyloric stenosis today is ultrasound that shows thickened elongated pyloric muscle. Standard measurements of muscle thickness are well known. A upper gastrointestinal barium study performed in fluoroscopy predated ultrasound and also was quite accurate but involves ionizing radiation.