Dysphagia - Differential Diagnosis Algorithm Oropharyngeal Dysphagia Esophageal Dysphagia • Upper 2/3 (striated muscle): stroke, NMJ disorders, ALS, MS, muscular dystrophy, spinal muscular atrophy, SLE, Sjogren, web • Mid esophagus: pill esophagitis • Lower 2/3 (smooth muscle): scleroderma, MCTD, achalasia. strictures, adenocarcinoma, DES, schatzki Entire length: RA. inflammatory myopathies Matthew Ho, MD PhD @MatthewHoMD #Dysphagia #Differential #Diagnosis #Algorithm #Oropharyngeal #Esophageal #gastroenterology