<unk>  is characterized as a motility disorder of the<unk> , meaning that it is caused by abnormal movement, or peristalsis of the<unk> . People with motility disorders present with two main symptoms: chest pain or difficulty with swallowing. Chest pain is the more common. The chest pain is very severe and intense, and mimics cardiac chest pain. It may spread into the arm and back. The symptoms of<unk>  are intermittent, and may occur with or without food. Rarely, patients can present with a sudden obstruction of the<unk>  after eating food (termed a food bolus obstruction, or the 'steakhouse syndrome') requiring urgent treatment. The disorder does not progress to produce worsening symptoms or complications, unlike other motility disorders (such as achalasia) or anatomical abnormalities of the<unk>  (such as peptic strictures or esophageal cancer). Many patients with<unk>  do not have any symptoms at all, as esophageal manometry studies done on patients without symptoms may show the same motility findings as<unk> .<unk>  may also be associated with metabolic syndrome. The incidence of<unk>  in all patients is uncertain.
Nutcracker esophagus
Barrett's esophagus
Esophageal web
Esophageal achalasia
Esophageal candidiasis
Esophageal stricture
Herpes esophagitis
Lymphocytic esophagitis