1701 results
Cutaneous and Systemic Findings in Dermatomyositis
Cutaneous Findings:
 - Heliotrope sign and edema
 - Nail-fold changes
 -
- Heliotrope sign ... or shawl sign ... - Symmetric, inflammatory ... myopathy (Triceps ... Arrhythmias - Inflammatory
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
spinal cord • Inflammatory ... Paraneoplastic syndrome • Inflammatory ... Lack of UMN/LMN signs ... : • Inflammatory ... • Metabolic myopathies
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Inflammatory Myopathies ... heliotrope, shawl sign ... BrighamChiefs #Inflammatory ... #Myopathies #differential
Myositis and Myopathies
#ESR #CK #Differential diagnosis of myopathy 
#Inflammatory #myopathies	#Dermatomyositis	
#muscle weakness
#Polymyositis	
#Inclusion body myositis
#Polymyalgia rheumatica	
#Fibromyalgia	
#Hypothyroid myopathy	
#Muscle stiffness
#Drug-induced
Myositis and Myopathies ... #Inflammatory ... #myopathies #Dermatomyositis ... #Hypothyroid myopathy ... Statin-induced myopathy
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Idiopathic Inflammatory ... Myopathies - ... TerrierBen #Inflammatory ... #Myopathies #Idiopathic ... #Myopathy #Comparison
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Diagnosis Framework Inflammatory ... Myopathies: Commonly ... papules and Gottron sign ... ) • Shawl sign ... syndrome • If myopathy
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
That May Mimic Inflammatory ... Myopathy • Central ... • Metabolic myopathies ... Mitochondrial myopathy ... MuscleWeakness #Myopathy
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
Myoglobinuria DDX: • Inflammatory ... , toxic myopathy ... Statins → Inflammatory ... myopathies such ... : Inflammatory statin
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Myositis and Myopathies ... load Drug-induced myopathy ... Gemcitabine Lupus Myopathy ... 5-15% of lupus myopathy ... #myopathy #differential
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Critical Illness Myopathy ... - Metabolic Myopathies ... toxoplasmosis - Inflammatory ... myopathy: dermatomyositis ... polymyositis, necrotizing myopathy