The ultrasound shows an elarged pylorus (click image for arrows).
An ultrasound study is ordered to confirm the presence of pyloric stenosis.
2) Hypertrophic pyloric stenosis:
Hypertrophic pyloric stenosis. Long-axis view through the hypertrophied
The pyloric muscle measures 5 mm thick and 21 mm
4 mm, and 14 mm, respectively is indicative of pyloric stenosis.
In pyloric stenosis, the muscles in this part of the stomach enlarge,
Longitudinal ultrasonogram of pyloric stenosis.
Pyloric stenosis
Pyloric ultrasound. <1> interval: length; <2> interval: muscle width
Ultrasound images reveal a) marked thickening of the wall of the pyloric
The validity of Ultrasound in Diagnosing Hypertrophic Pyloric Stenosis

Pylorus stenosis is usually apparent on ultrasound and responds to surgery.
Ultrasound picture for the curious - 65K The outline shows the boundaries of
Hypertrophic Pyloric Stenosis - MedPix�: 27207 - Medical Image Database and
Pyloric stenosis is best diagnosed using ultrasound, which is ~99% sensitive
Pyloric Stenosis flowchart. Pyloric Stenosis flowchart.gif
Longitudinal ultrasonogram in a patient with hypertrophic pyloric stenosis
Symptoms of pyloric stenosis generally begin about three weeks of age and
Pyloric stenosis - series : Normal anatomy