EGJOO may be broadly categorized into 4 subgroups: mechanical,<unk> al, medication-related, and artifact.
Esophagogastric junction outflow obstruction
Esophageal food bolus obstruction
Velopharyngeal inadequacy
Gastric outlet obstruction
Esophageal motility disorder
Esophagogastric dissociation
Gastric antral vascular ectasia
Velopharyngeal insufficiency