523 results
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 ... #ESR #CK #Differential ... #Inflammatory #myopathies ... Dermatomyositis #muscle ... #Drug-induced myopathies
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Myositis and Myopathies ... weakness • Elevated CK ... rash • Elevated CK ... mildly elevated CK ... BostonChiefs #Myositis #Myopathies
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Causes of Elevated CK ... Levels Acute CK ... ): • PROXIMAL MUSCLE ... - Metabolic Myopathies ... Kinase #Elevated #CK
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Inflammatory Myopathies ... , drug-induced myopathies ... Tests: • Measure CK ... (symmetric) • CK ... weakness • CK
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
Statin Induced Muscle ... Statin-Associated Muscle ... • The onset of muscle ... → Inflammatory myopathies ... Diagnosis: • CK
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Inflammatory Myopathies ... : Proximal • CK ... : Proximal • CK ... : Proximal • CK ... #Inflammatory #Myopathies
RHABDOMYOLYSIS
•	Characterized by skeletal muscle breakdown & necrosis. 
•	Elevated Creatine kinase (CK) hallmark of rhabdomyolysis. 
•	Defined based
Characterized by skeletal muscle ... Creatine kinase (CK ... Defined based on CK ... • Half-life of CK ... useful marker of muscle
Creatine kinase (CK) is an intracellular enzyme present in skeletal muscle, myocardium & brain; smaller amounts
Creatine kinase (CK ... present in skeletal muscle ... of underlying muscle ... CK may increase ... useful marker of muscle
Usmle step 2 ck
Pulmonary diseases (High yield points)
#usmle #algorithm
Usmle step 2 ck ... yield points) #usmle
Dysphagia - Differential Diagnosis Algorithm

Oropharyngeal Dysphagia 
Esophageal Dysphagia 
 • Upper 2/3 (striated muscle): stroke, NMJ
2/3 (striated muscle ... Lower 2/3 (smooth muscle ... . inflammatory myopathies