<unk>  may be helpful in the diagnosis of a<unk>  hernia. Findings on an<unk>  suggestive of a<unk>  hernia include intra-abdominal esophagus measurement, gastroesophageal junction location, bowel diameter, and gastroesophageal angle.
Hiatus hernia echocardiography or ultrasound
Hiatus hernia chest x ray
Achalasia other diagnostic studies
Hiatus hernia physical examination
Pyloric stenosis physical examination
Congenital diaphragmatic hernia physical examination
Hypopharyngeal cancer echocardiogram or ultrasound
Zenker's diverticulum physical examination