Fig. 13
From: Non-neoplastic pathology at the crossroads between neck imaging and cardiothoracic imaging
Zenker diverticulum. Lateral (a) fluoroscopic images demonstrate a focal outpouching from the posterior aspect of the esophagus containing an air-contrast level consistent with a Zenker diverticulum. Axial (b) noncontrast CT images from the same patient demonstrate residual oral contrast (arrow) within the Zenker diverticulum arising from the posterolateral aspect of the esophagus