CT features are consistent with an infected Killian-Jamieson diverticulum fistulized towards the left thyroid lobe, which was confirmed at surgery.
Killian-Jamieson diverticulum is rare esophageal outpouching arising from the lateral wall of the proximal cervical esophagus; inferior to the cricopharyngeus muscle 1. It represents an outpouching of mucosa through a muscular defect, The most common symptoms are dysphagia, cough and epigastric pain 1.
It is distinct from the more commonly known Zenker diverticulum which is seen in the posterior wall of the pharynx 1. Barium esophagography and CT scan are useful to confirm the diagnosis and differentiate between both diverticula 1. The treatment is surgical (transcutaneous diverticulectomy +/- oesophagomyotomy) 1.
Additional contributor ZE. Boudiaf; MD CHU Constantine; Algeria.