Ultrasonography is the modality of choice for the diagnosis of infantile pyloric<unk> . The thickened pre-pyloric antrum bridging the duodenal bulb and distended stomach could be seen in the ultrasound of patients with infantile pyloric<unk> . Demonstration of the pylorus is achieved by identifying the duodenal cap, distended stomach, and intervening pyloric channel. In patients with pyloric<unk> , the variable hypertrophy of the smooth muscle and crowded intervening mucosa which is thickened to a variable degree, and protrudes into the distended portion of the antrum (nipple sign)  may be observed on ultrasonography.
Pyloric stenosis ultrasound
Pyloric stenosis physical examination
Achalasia ultrasound
Barrett's esophagus physical examination
Dysphagia MRI
Achalasia physical examination
Mallory-Weiss syndrome CT
Dysphagia endoscopy