Antibodies = Dx Flashcards
ANA
30% baseline population positive
SLE
JIA - assoc risk of uveitis
Dermatomyositis
Scleroderma
Psoriatic arthritis- assoc risk of uveitis
?MCTD
dsDNA
SLE- high specificity, assoc lupus nephritis
Anti-Smith
Highly specific for SLE; associated with lupus nephritis
Anti-Smooth muscle
Autoimmune hepatitis
Anti-Pm-Scl
Sclerodermatomyositis
Polymyositis
Anti-Ro (ENA)
SLE- associated with neonatal lupus/CHB/thrombocytopenia
Sjögren syndrome
Anti-La (ENA)
SLE- associated with neonatal lupus/CHB/thrombocytopenia
Sjögren syndrome
d
Anti-Histone
Drug induced SLE
Anti-Centromere
Limited cutaneous systemic sclerosis
Anti-Scl70 (topoisomerase 1)
Systemic sclerosis/scleroderma
cANCA/PR3
granulomatosis with polyangiitis (Wegener), cystic fibrosis
pANCA/MPO
microscopic polyangiitis
polyarteritis nodosa
SLE
inflammatory bowel disease
cystic fibrosis
primary sclerosing cholangitis
Henoch-Schönlein purpura
Kawasaki disease
Churg-Strauss syndrome
Anti-CCP
RF positive JIA- specific, may be positive before RF
ANA anti centromere antibody
CREST