178 results
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Idiopathic Inflammatory ... Immune-Mediated Necrotizing Myopathy ... Antisynthetase Syndrome ... #Myopathy #Comparison ... #Rheumatology #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
#ESR #CK #Differential ... diagnosis of myopathy ... #Inflammatory ... #Hypothyroid myopathy ... Statin-induced myopathy
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
That May Mimic Inflammatory ... Myopathy • Central ... Mitochondrial myopathy ... MuscleWeakness #Myopathy ... mimics #diagnosis #differential
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
myopathy, rhabdomyolysis ... , toxic myopathy ... hypothyroid-induced myopathy ... Statin-induced myopathy ... - Necrotizing myopathy
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
rimmed vacuoles HIV myopathy ... load Drug-induced myopathy ... Gemcitabine Lupus Myopathy ... 5-15% of lupus myopathy ... #myopathy #differential
Idiopathic Inflammatory Myopathies (IIM's)

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

 • Overlap Myositis
Myopathies (IIM's ... myopathy that occurs ... antisynthetase syndrome ... myopathy affecting ... #dermatology #Myopathy
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Critical Illness Myopathy ... toxoplasmosis - Inflammatory ... myopathy: dermatomyositis ... polymyositis, necrotizing myopathy ... #Elevated #CK #differential
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Seronegative Inflammatory ... Arthritis - Differential ... Still's Disease, Inflammatory ... Myopathy • Crystal ... #arthritides #Differential
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... • Inflammatory ... proximal weakness Myopathy ... mediated necrotizing myopathy ... #Weakness #Differential
Abdominal Distention - Differential Diagnostic Algorithm
Ascites
Bowel Dilatation
Other Causes
Mechanical Obstruction
 • Adhesions 60%
 • Volvulus 3%
 •
Abdominal Distention - Differential ... Intestinal Ogilvie's Syndrome ... Megacolon • Inflammatory ... • Ischemic Myopathic ... Scleroderma • Familial Myopathy