Tests and diagnosisBy Mayo Clinic staff
Often, your baby's doctor can feel an olive-shaped lump — the enlarged pyloric muscle — when examining your baby's abdomen. The peristaltic waves in the baby's abdomen are another telltale sign of pyloric stenosis.
Your doctor may also order blood tests to look for signs of dehydration.
An ultrasound will usually confirm the diagnosis.
- Olive AP, et al. Infantile hypertrophic pyloric stenosis. http://www.uptodate.com/home/index. Accessed Oct. 18, 2012.
- Pyloric stenosis. The American Pediatric Surgical Association. http://www.pediatricsurgerymd.org/AM/Template.cfm?Section=List_Of_Conditions1&ContentID=1619&template=/CM/ContentDisplay.cfm. Accessed Oct. 18, 2012.
- Barbara Woodward Lips Patient Education Center. About your baby's surgery for pyloric stenosis. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2008.
- Kliegman RM, et al. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.mdconsult.com/das/book/body/208746819-6/0/1608/0.html. Accessed Oct. 18, 2012.