with three exceptions the findings compared well : at chul ( a ) the frequency of the hla-b27 antigen in patients with axial psoriatic arthritis was very low , ( b ) patients with synchronous psoriasis and arthritis were not more severely affected , and ( c ) certain radiologic signs that seem to be rare and have probably been overemphasized in the literature were not found .
C0003872
psoriatic arthritis
C0003864
arthritis