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what type of epithelium lines the esophagus? non-keratinizing squamos
where is esophageal atresia most likely located? near the tracheal bifurcation
fistulas of the esophagus: what type most common? treatment? true fistulas more common, uncommon in general, must be corrected early
esophageal mucosal webs? protrusions of the mucosa, most common in the upper
esophageal rings? most common in distal, two types (A--above; B-below (Schazki); episodic dyshphagia
which congenital problem causes episodic dysphagia? esophageal rings
which congenital problem causes adult, progressive dysphagia? esophageal stenosis
whch congenital disorder involves a reactive fibrosis? esophageal stenosis, most likely in adults
You have a pt with achalasia, who suddenly begins to become dramatically ill. What should you be worried about? squamos cell carcinoma (5%)
what is the problem with achalasia? increased tone of the LES WHEN swallowing, aperistalsis due to dysfunction of inhibitory neurons (NO, vasoactive intestinal peptide)
Created by: HSF2