Presentation
Non-bilious projectile vomiting
Patient Data
Plain radiograph shows marked gaseous distension of the stomach out of proportion to bowel loops.
The chest appears unremarkable.
The pyloric canal showed muscle thickening, measuring about 0.4 cm in thickness, the thickened muscle forms the target sign (hypoechoic ring of hypertrophied pyloric muscle around echogenic mucosa centrally on transverse images). The canal also appears elongated which is measuring about 1.9 cm in length.
Case Discussion
The hypertrophic pyloric canal stenosis is the thickening of gastric pyloric musculature which then results in gastric outlet obstruction, happened in male more than female and usually in the first born baby, the ultrasound is the modality of choice with the following criteria, pyloric muscle thickness > 0.3 cm, length > 1.5 cm, transverse diameter > 1.3 cm.
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