189 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 ... #Idiopathic #Myopathy ... #Comparison #Managment
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
Toxicity - Summary Clinical ... • Inflammatory myopathy ... Statin-induced myopathy ... IU/I • SAMS clinical ... #diagnosis #management
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
immobility • Critical ... Illness Myopathy ... - Metabolic Myopathies ... - Inflammatory myopathy ... polymyositis, necrotizing myopathy
Idiopathic Inflammatory Myopathies (IIM's)

RASH + MUSCLE WEAKNESS → Consider idiopathic inflammatory myopathies (IIM's)

 • Overlap Myositis
Idiopathic Inflammatory Myopathies ... Any inflammatory myopathy ... antisynthetase syndrome ... Inflammatory myopathy ... #dermatology #Myopathy
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Myositis Necrotizing myopathy ... anti-synthetase syndrome ... and anti-HMGCR myopathy
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Diplopia TIER 1-CRITICAL ... , Orbital apex syndrome ... Miller-Fisher syndrome ... sclerosis, Thyroid myopathy
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Anti-Synthetase Syndrome ... Mediated Necrotizing Myopathy ... Antibodies #MSAs #clinical
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... Paraneoplastic syndrome ... Lambert-Eaton - Isaacs' syndrome ... proximal weakness Myopathy ... mediated necrotizing myopathy
Myoedema in Hypothyroidism on Physical Exam

Hypothyroidism is a clinical syndrome resulting from the production, secretion or
Hypothyroidism is a clinical ... syndrome resulting ... hormones, with varied clinical ... and scaly skin, myopathy ... Myopathy due to
Hypothyroid Myopathy
Very common (up to 80% ) in patients with hypothyroidism
Pathophysiology:
 • T4 deficiency leads to
Hypothyroid Myopathy ... fibers Spectrum of Clinical ... Symmetric, proximal myopathy ... #Hypothyroid #Myopathy