Esophageal web occurs more frequently in females. 62 As for congenital esophageal rings, it is thought that webs result from incomplete vacuolization of the esophageal columnar epithelium during early ...

The adult human esophagus is an 18- to 25-cm long muscular tube that has cervical, thoracic, and abdominal parts. The esophagus wall is composed of striated muscle in the upper part, smooth muscle in ...