2125 results
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Churg-Strauss syndrome ... Immune-complex-induced ... hypersensitivity angiitis induced ... induced by chronic ... Vessels #Diagnosis #Rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Anti-histone - Drug-induced ... Anticentromere - CREST syndrome ... La) - Sjogren's syndrome ... Goodpasture's syndrome ... diagnosis #table #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
disease (MCTD), Drug-induced ... SLE), Sjogren's Syndrome ... ANA #patterns #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
SLE), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... Arthritis, Drug-Induced ... Cirrhosis, Drug-Induced ... ANA #patterns #rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation Syndrome ... Periodic fever syndromes ... Sepsis • Drug-induced ... hypersensitivity syndromes ... #Rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-histone (in drug-induced ... cases • Sjögren syndrome ... antibodies #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Causes: - Drug induced ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... Differential #Diagnosis #hematology ... #rheumatology #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Non-autoimmune rheumatologic ... Shrinking lung syndrome ... extremities Drug Induced ... Antihistone: Drug induced ... Erythematosus #Diagnosis #Rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
60-70%) & drug-induced ... SLE-SSc-AlM overlap syndromes ... erythematosus #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
• Hydralazine-Induced ... VASCULITIS: • Behçet Syndrome ... • Cogan Syndrome ... polyarteritis, drug-induced ... differential #diagnosis #rheumatology