Presentation
Projectile vomiting.
Patient Data
Age: 4 weeks
Gender: Male
From the case:
Hypertrophic pyloric stenosis
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Marked thickening of pyloric muscles with elongated pyloric canal, muscle wall thickness is 5 mm, pyloric canal length is 18 mm, and transverse diameter is 13 mm. No fluid was noted passing through the pyloric canal during the examination. Features are those of hypertrophic pyloric stenosis.
Case Discussion
The most accurate measurement to diagnose hypertrophic pyloric stenosis is the diameter of a single muscular wall (hypoechoic component), which should be >3 mm.
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