Cricopharyngeal muscle spasm is also known as cricopharyngeal achalasia, although some authors distinguish between these entities, and may present as a cause of dysphagia.
On this page:
Terminology
There is confusing use of the terms cricopharyngeal muscle spasm, cricopharyngeal achalasia and cricopharyngeal bar.
Cricopharyngeal bar refers to the radiographic appearance of a prominent cricopharyngeus muscle contour but is not synonymous with cricopharyngeal muscle spasm/achalasia, which is one of the underlying pathologies that can cause the appearance of one.
Pathology
In most patients the exact etiology for this spasm is unknown. Some associated predisposing conditions include:
Radiographic features
Fluoroscopy
Presents as a cricopharyngeal bar, which is seen as a relatively constant impression on the posterior aspect of esophagus at C5-6 level. Cricopharyngeal spasm can be diagnosed with manometry.
Treatment and prognosis
Complications
Differential diagnosis
- those for a cricopharyngeal bar
- similar appearance can occur post total laryngectomy
Unable to process the form. Check for errors and try again.