8 results
Idiopathic Inflammatory Myopathies - 
Dermatomyositis (DM), Immune-Mediated Necrotizing Myopathy (IMNM), Antisynthetase Syndrome (ASS), Inclusion Body Myositis
Immune-Mediated Necrotizing Myopathy ... Myopathies #Idiopathic #Myopathy ... #Comparison #Managment ... #algorithm #Rheumatology ... #Differential
Break down Vasculitis based on vessel size
#Diagnosis #Rheumatology #Differential #Vasculitis #VesselSize #Small #Medium #Large #Classification
size #Diagnosis #Rheumatology ... #Differential # ... Vasculitis #VesselSize #Small ... #Medium #Large
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
load Drug-induced myopathy ... 5-15% of lupus myopathy ... #differential # ... diagnosis #comparison ... #rheumatology
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
vessel vasculitis, medium ... vasculitis, and small ... #Diagnosis #Rheumatology ... #Differential # ... #Medium #Large
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Findings: • Small ... Urticaria • Medium ... ulceration Small ... #dermatology #rheumatology ... #differential #
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
multiple organs, small-vessel ... Arterial (MCC-small ... Medium and large ... Behcet disease) Differential ... signs #symptoms #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
abnormalities SMALL ... + MPO-ANCA MEDIUM ... aortic aneurysm • Medium ... pain, infarct • Small ... #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... primary condition MEDIUM ... and infarcts SMALL ... #Diagnosis #Rheumatology