Zenker's diverticulum Symptoms, Causes, Diagnosis, Treatment, Complications and How it Occur скачать в хорошем качестве

Zenker's diverticulum Symptoms, Causes, Diagnosis, Treatment, Complications and How it Occur

ZD is a sac-like outpouching of the mucosa and submucosa through Killian's triangle. ZD is defined as a posterior "false" diverticulum that has a neck proximal to the cricopharyngeal muscle. The precise cause of ZD remains unsettled, but it occurs in a variety of circumstances predisposing to herniation within Killian's triangle, most notably disorders associated with upper esophageal sphincter dysfunction, Small diverticula can be asymptomatic. ZD should be suspected in middle age or older adults with progressive oropharyngeal dysphagia (usually to solids and liquids) or regurgitation of undigested food debris. Asymptomatic ZD that are less than 1 cm in size do not warrant treatment. Patients can be managed conservatively until symptoms occur or diverticulum increases in size. The definitive treatment of symptomatic ZD is surgical.