صور pyloric stenosis

من طرف sara mohamed ali السبت أكتوبر 31, 2009 9:45 pm

PYLORIC STENOSIS

What Is Pyloric Stenosis?
Pyloric stenosis is the narrowing of part of the stomach (the pylorus) that leads into the small intestines. This narrowing occurs because the muscle around the pylorus has grown too large. Most babies with pyloric stenosis begin to vomit during the second to third week of life. Babies begin with "spitting up" that turns into forceful projectile vomiting. The vomiting occurs after feeding. Sometimes, in formula-fed infants, different kinds of formula are tried without any change noted.

	Diagram of normal stomach and pylorus. Note the cross-section showing normal pyloric opening.
	Diagram of stomach with pyloric stenosis. Note the cross-section showing how the pyloric opening is very narrowed.
	Diagram of stomach after repair of pyloric stenosis. Note (in the cross-section) how an incision has been made in the muscle, enlarging the pylorus and relieving the obstruction