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Obstructive Disorders of the Esophagus
Most esophageal obstruction develops slowly and is incomplete when patients first seek care, typically for difficulty swallowing solids. However, sometimes complete esophageal obstruction develops suddenly because of an impacted foreign body or food bolus (see Esophageal foreign bodies).
Obstruction may have intrinsic or extrinsic causes.
Intrinsic obstruction may be caused by
Extrinsic obstruction may be caused by compression resulting from
An enlarged left atrium
An aortic aneurysm
An aberrant subclavian artery (termed dysphagia lusoria—see Dysphagia Lusoria)
A substernal thyroid gland
Cervical bony exostosis
A thoracic tumor
For evaluation of potential esophageal obstruction, see Dysphagia.
* This is a professional Version *