Zenker Diverticulum

64year old man presented with h/o dysphagia and regurgitation. Contrast enhanced CT scan of the neck and thorax revealed A diverticulum arising from the midline of the posterior wall of the distal pharynx near the pharyngo-esophageal junction. The diverticulum measured 2.3 x 1.2 cm (length x width) and extended in the left paramedian region along the proximal esophagus opposite C5-C6 vertebral level.