What it means
The thickened muscle of the stomach outlet felt through the belly wall, usually just above and to the right of the navel, in pyloric stenosispy-LOR-ik steh-NOH-sisA narrowing of the outlet of the stomach in a young infant, caused by thickening of the pylorus muscle.pylor/o pylorussten/o narrow-osis conditionFull entry . It is easiest to feel right after the baby vomits, when the stomach is empty and the belly is relaxed. Pyloric stenosis usually appears at 2 to 8 weeks of age with forceful, projectile vomiting after feeds.
For the nurse
Report the finding along with the pattern of vomiting, weight and signs of dehydration.
Related terms
dehydration
A state in which the body has lost more water than it has taken in.
pyloric stenosis
A narrowing of the outlet of the stomach in a young infant, caused by thickening of the pylorus muscle.