A<unk> , also pharyngeal pouch, is a diverticulum of the mucosa of the human pharynx, just above the cricopharyngeal muscle (i.e. above the upper sphincter of the esophagus). It is a pseudo diverticulum (not involving all layers of the esophageal wall). It was named in 1877 after German pathologist Friedrich Albert von<unk> .
Zenker's diverticulum
Barrett's esophagus
Killian–Jamieson diverticulum
Zenker's degeneration
Herpes esophagitis
Nutcracker esophagus
Trevor disease
Hunner's ulcer