21 results
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Necrotizing myopathy ... less systemic symptoms ... , holster sign, ... anti-synthetase syndrome ... and anti-HMGCR myopathy
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Weakness • Spinal ... Poliomyelitis, Guillain-Barre ... Mitochondrial myopathy ... #diagnosis #neurology
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
proximal myalgia and weakness ... symmetric muscle weakness ... • Myalgia • Myositis ... , Guillain-Barré ... inclusion body myositis
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Normal CK - Myositis ... femoral heads • Myopathy ... (Also caused by ... pathophysiology #signs ... #symptoms #diagnosis
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... Lack of UMN/LMN signs ... Myopathy: ... mediated necrotizing myopathy ... Differential #Diagnosis #neurology
Hypothyroidism – symptoms and signs.

Symptoms: 
Tiredness/malaise, 
Weight gain,
Anorexia,
Cold intolerance, 
Poor memory,
Change in appearance, 
Depression, 
Poor libido,
Hypothyroidism – symptoms ... and signs. ... Symptoms: Tiredness ... Carpal timel syndrome ... hypertrophy, Proximal myopathy
NINDS Diagnostic Criteria for Guillain Barre Syndrome 
Features Required for Guillain-Barré Syndrome:
 • Progressive muscle weakness
muscle weakness ... , Mild sensory symptoms ... or signs, Cranial ... nervous system signs ... #criteria #neurology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness ... I am weak": • Myopathy ... Inflammatory/Rheum: Myositis ... Differential #Diagnosis #causes ... #neurology
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Lambert-Eaton Myasthenic Syndrome ... • Congenital Myopathy ... #Neurology #Differential ... Diagnosis #Algorithm #Causes
Myoedema in Hypothyroidism on Physical Exam

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