Causes of Polyneuropathy - Differential Diagnosis Algorithm • Metabolic: DM, Hypothyroidism, CKD, Cirrhosis, Nutritional deficiency • Toxic: EtOH, Meds, Heavy metals, Vitamin B6, Organophosphates • Inflammatory: - Infectious: HIV, Lyme, Diphtheria, Leprosy - Non-Infectious: GBS, Amyloidosis, Paraneoplastic, CTD (SLE, RA, Sjogren’s), Vasculitis, Sarcoidosis • Hereditary: Charcot-Marie Tooth, Porphyria, Mitochondrial issues - VA Joint Chiefs @BostonChiefs #Polyneuropathy #Differential #Diagnosis #Algorithm #causes #neurology