![]() ![]() ![]() It is hypothesized that improperly timed relaxation of the cricopharyngeus muscle during swallowing leads to increased pressure which causes herniation of the oesophageal mucosa over time. The aetiology is incompletely understood. It is located between the oblique fibers of the inferior constrictor muscle and the horizontal fibers of the cricopharyngeal muscle. Zenker diverticulum occurs at an area of potential weakness in the inferior pharyngeal constrictor muscle referred to as the Killian dehiscence. True diverticulum consists of all layers of the wall. It is a false diverticulum consisting of mucosa and submucosa that arises from the posterior portion of the inferior pharyngeal constrictor muscle. It is a pulsion diverticulum caused by herniation of the oesophageal mucosa posteriorly between the cricopharyngeus muscle and the inferior pharyngeal constrictor muscles. Barium swallow may be considered as an initial investigation for investigation of proximal dysphagia however an endoscopy is safe as an initial test in experienced hands. Patients with proximal dysphagia may have a pharyngeal pouch, post cricoid web etc which increases the risk of perforation on endoscopy. His endoscopy showed:ĭiscuss the diagnosis of Zenker diverticulum?īarium swallow is the investigation of choice.ĭiscuss the role of barium swallow as the first investigation in the diagnosis of dysphagia? Mr Jones, a 70 year old retired pharmacist presented with complaints of dysphagia and regurgitation of partially digested food material. Establishment of Gastrointestinal Endoscopy Areas.Iron Replacement (parenteral dosing) for Iron Deficiency. ![]()
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