192 results
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Idiopathic Inflammatory Myopathies ... Immune-Mediated Necrotizing Myopathy ... Antisynthetase Syndrome ... #Inflammatory #Myopathies ... #Idiopathic #Myopathy
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Mimic Inflammatory Myopathy ... or peripheral neurologic ... Mitochondrial myopathy ... MuscleWeakness #Myopathy ... differential #causes #neurology
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
• Inflammatory myopathy ... hypothyroid-induced myopathy ... Statin-induced myopathy ... - Necrotizing myopathy ... fibers Risk of myopathy
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Myositis Necrotizing myopathy ... less systemic symptoms ... , holster sign, ... anti-synthetase syndrome ... and anti-HMGCR myopathy
Myelopathy - Injury to the entire spinal cord - Signs and Symptoms
 • Ataxia (early sign)
Myelopathy - Injury ... spinal cord - Signs ... and Symptoms ... ) #Myelopathy ... #symptoms #msk
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
Neurological Patterns of Weakness
 • Hemispheric lesion
 • Brainstem lesion
 • Spinal cord lesion
 • Polyneuropathy
Polyneuropathy • Myopathy ... #Neurology #Patterns
Symptoms of Hypophosphatemia
 • CNS: Seizures, Delirium, Paresthesias, Central & extrapontine myelinolysis, Hallucinations, Fatigue
 • Hematologic:
Symptoms of Hypophosphatemia ... MSK: Proximal myopathy ... Hypophosphatemia #Phosphate #Symptoms ... #Signs #Diagnosis
Hypothyroid Myopathy
Very common (up to 80% ) in patients with hypothyroidism
Pathophysiology:
 • T4 deficiency leads to
Hypothyroid Myopathy ... Symmetric, proximal myopathy ... #Hypothyroid #Myopathy ... pathophysiology #signs ... #symptoms #endocrinology
Weakness - Differential Diagnosis Framework

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