42 results
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Muscle Weakness ... Mimic Inflammatory Myopathy ... Mitochondrial myopathy ... MuscleWeakness #Myopathy ... mimics #diagnosis #differential
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
proximal myalgia and weakness ... symmetric muscle weakness ... Guillain-Barré syndrome ... antisynthetase syndrome ... (SAMS-CI) • EMG
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... Critical Illness Myopathy ... - Inflammatory myopathy ... polymyositis, necrotizing myopathy ... #Elevated #CK #differential
Causes of Peripheral Weakness - With and Without Sensory Changes - Differential Diagnosis Algorithm
With Sensory Changes:
Causes of Peripheral ... Sensory Changes - Differential ... Oculomotor • Myopathy ... Sensory #Neurology #Differential ... Diagnosis #Algorithm #Causes
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Sensory Changes - Differential ... Lambert-Eaton Myasthenic Syndrome ... • Congenital Myopathy ... #Neurology #Differential
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Weakness • Spinal ... Guillain-Barre syndrome ... Mitochondrial myopathy ... #Causes #differential
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Findings Causes ... • Milk-alkali syndrome ... #ECG #Electrocardiogram ... #Differential # ... #Cardiology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness ... - Differential ... I am weak": • Myopathy ... #Differential # ... Diagnosis #causes
Micronutrient Deficiencies After Gastric Bypass
Fat-Soluble Vitamins:
 • Vitamin A - Night/complete blindness, xeropthalmia (pathologic dryness of
ataxia), Korsakoff syndrome ... cognitive deficits, myelopathy ... diarrhea • Copper - Myelopathy ... with muscle weakness ... #differential #
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Myopathy: ... mediated necrotizing myopathy ... electromyographic (EMG ... #Differential #