A person with cricopharyngeal dysfunction may experience difficulty swallowing or a feeling of something being stuck in their throat. This is because the sphincter does not open properly. Treatment ...

At rest, closure of the upper esophageal sphincter (UES) is due to passive forces as well as active muscle contraction, and its relaxation requires inhibition of the cricopharyngeus and contraction of ...

There is a very prominent thumb-like indentation at the pharyngoesophageal junction (white arrow) representing a cricopharyngeal bar. A flow or "jet phenomenon" (black arrows) is seen below confirming ...