CONDITIONS ASSOCIATED WITH POSITIVE IF-ANCA TEST RESULTS

 

Approx % Pos. ANCA

(combined patterns)

Approx. % Patients Demonstrating:
C Pattern P Pattern
Wegener's granulomatosis:
- Active generalized
- Limited forms
- Inactive


85 - 92
60 - 67
30 - 35


85 - 90
85 - 90
85 - 90
2 - 5
2 - 5
2 - 5
Idiopathic Crescentic
Glomerulonephritis 		80 some*

majority*

Polyarteritis Nodosa 50 86

14

Churg - Strauss 50 80

20

SLE <10 0

>90

Rheumatoid Arthritis <5 0

>90

Sjögren's Syndrome 25 0

>90

* No quanitation in the literature

Reference: ARUP Laboratories www.aruplab.com/guides/clt/tests/clt_al92.htm#1143348