238 results
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Causes of Proximal ... Mimic Inflammatory Myopathy ... Mitochondrial myopathy ... MuscleWeakness #Myopathy ... #neurology
Causes of Peripheral Weakness - With and Without Sensory Changes - Differential Diagnosis Algorithm
With Sensory Changes:
Causes of Peripheral ... Differential Diagnosis Algorithm ... Oculomotor • Myopathy ... Weakness #Sensory #Neurology ... #Causes
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Immune-Mediated Necrotizing Myopathy ... Myopathies #Idiopathic #Myopathy ... Comparison #Managment #algorithm
Neurological Patterns of Weakness
 • Hemispheric lesion
 • Brainstem lesion
 • Spinal cord lesion
 • Polyneuropathy
Polyneuropathy • Myopathy ... #Neurology #Patterns
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
rimmed vacuoles HIV myopathy ... load Drug-induced myopathy ... Gemcitabine Lupus Myopathy ... 5-15% of lupus myopathy ... Myositis #Myopathies #myopathy
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Differential Diagnosis Algorithm ... • Congenital Myopathy ... Peripheral #Weakness #Neurology ... #Causes
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... Critical Illness Myopathy ... Subacute to Chronic Causes ... - Inflammatory myopathy ... polymyositis, necrotizing myopathy
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Mitochondrial myopathy ... Neuromuscular #Weakness #Causes ... differential #diagnosis #neurology
Hypothyroid Myopathy
Very common (up to 80% ) in patients with hypothyroidism
Pathophysiology:
 • T4 deficiency leads to
Hypothyroid Myopathy ... hypertrophy of slow-twitching ... Symmetric, proximal myopathy ... #Hypothyroid #Myopathy
Myoedema in Hypothyroidism on Physical Exam

Hypothyroidism is a clinical syndrome resulting from the production, secretion or
and scaly skin, myopathy ... Myopathy due to ... reflex hammer, caused ... clinical #video #neurology