title: Ulcer in the basis of Zenker's diverticulum mimicking esophageal malignancy.
abstract: Complications of Zenker's diverticulum are rare and include ulcer, bleeding and malignancy. Ulcer in the basis of diverticulum is a very rare complication and to date only four cases have been reported in the literature. Herein, we report a new case of ulcer in Zenker's diverticulum mimicking esophageal malignancy presumed to be due to aspirin and/or alcohol consumption. The exact diagnosis was troublesome and needed to perform diagnostic procedures repeatedly. The patient underwent external pharyngoesophageal diverticulectomy. We emphasize that endoscope should be withdrawn if any resistance is encountered during esophageal intubation-even with forward-viewing endoscope-especially when there is a Zenker's diverticulum suspicion and the patient receives ulcerogenic agents. Endoscopic examination should be performed prior to any definitive surgical procedure in all patients with Zenker's diverticulum.
authors.affiliation: Departments of Gastroenterology, Türkiye Yüksek Ihtisas Hospital, Ankara, Turkey.
authors.forename: Bolent
authors.initials: B
authors.lastname: Odemis
authors.forename: Hilmi
authors.initials: H
authors.lastname: Ataseven
authors.forename: Omer
authors.initials: O
authors.lastname: Basar
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Ertugrul
authors.forename: Osman
authors.initials: O
authors.lastname: Yüksel
authors.forename: Nesrin
authors.initials: N
authors.lastname: Turhan
mesh_terms: D000368:Aged; D000428:Alcohol Drinking / Q000009:adverse effects; D001241:Aspirin / Q000009:adverse effects; D003937:Diagnosis, Differential; D004238:Diverticulitis / Q000150:complications*; D004724:Endoscopy / Q000379:methods; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D014456:Ulcer / Q000209:etiology* / Q000473:pathology; D016672:Zenker Diverticulum / Q000150:complications*
chemical_list: D001241:Aspirin