Psoriatic Arthritis Flashcards
1
Q
Differential diagnoses
A
RA (more symmetrical, less likely to have nail changes, RhF and CCP neg, family/personal history of psoriasis less likely, dactylitis less likely)
OA
Ank Spond, reactive arthritis, IBD related arthropathy
Sarcoidosis and gout if oligoartheopathy
Above and gout if dactylitis
2
Q
Investigations
A
Inflammatory markers often not raised
HLA-B27 positive often
3
Q
Treatment
A
Methotrexate
Leflunimide
Infliximab/etanercept
(All help joint and skin)
4
Q
Pattern of joint involvement
A
5 types:
Rheumatoid like Arthritis mutilans Oligoarthropathy DIP joints Spondyloarthropthy/sacroileitis
