Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm No Objective Weakness • Cardio-pulmonary disease • Anemia • Chronic Infection • Malignancy • Depression • Deconditioning • Arthritis • Fibromyalgia • Endocrine Disease Motor Neuron and Motor Neuropathy - Atrophy, Fasciculations, Hyperreflexia • Lead toxicity • Progressive muscular atrophy • Hodgkin's lymphoma • Polio • Multifocal Motor Neuropathy • Spinal Muscular Atrophy Neuromuscular Junction - Fatigability, Variability, Oculomotor • Myasthenia Gravis • Lambert-Eaton Myasthenic Syndrome • Botulism • Congenital Myopathy - Proximal muscle involvement, elevated CK • Polymyositis • Duchenne Muscular Dystrophy • Statin Toxicity • Dermatomyositis • Viral infection #Peripheral #Weakness #Neurology #Differential #Diagnosis #Algorithm #Causes