MIRA3006 Lecture Notes - Lecture 1: Schatzki Ring, Achalasia, Fluoroscopy
5 Aug 2018
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Document Summary
Achalasia: disease that prevents relaxation of the sphincter and an absence of contraction or peristalsis of oesophagus. Symptoms: dysphagia, chest pain, regurgitation of food and liquids, weightloss. The classical but uncommon finding is the corkscrew appearance, especially of the distal esophagus. The lower esophageal sphincter, unlike in achalasia, will relax normally. Diffuse oesophageal spasm (dos): motility disorder of oesophagus i. e. corkscrew esophagus. Diverticula: sac or pouch arising from a tubular organ. Most common pharyngoesophageal diverticula include pharyngeal, zenker, killian-jamieson, epiphrenic diverticula. Pseudodiverticulosis: wall of oesophagus develops numerous small outpouchings (pseudodiverticulae) Esophageal intramural pseudodiverticula are dilated excretory ducts of the deep mucous glands in the esophagus. Barium swallow is a study of choice (ductal orifices is too small to be seen on endoscopy) Better seen with a single contrast than double contrast. Clustering may occur next to peptic strictures. Viewed in profile, often appear (cid:862)floating(cid:863) next to the oesophageal walls as the channel to the lumen is imperceptible.
