Find out about COVID-19, COVID-19 vaccines, and Mayo Clinic patient and visitor updates.
Featured conditions Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Featured conditions
In surgery to treat pyloric stenosis (pyloromyotomy), the surgeon makes an incision in the wall of the pylorus. The lining of the pylorus bulges through the incision, opening a channel from the stomach to the small intestine.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.