Hidden psoriatic arthritis in seronegative oligoarthritis: a 14-year follow-up study.
Out of a cohort of 64 patients with seronegative oligoarthritis (SO), 8 patients with HLA-B13, 5 with Bw16 and 3 with HLA-B17 were invited to participate in a 14-year check-up. Thirteen patients showed some features of psoriatic arthritis, including 5 with suspected skin or nail disease, 5 with a family history of psoriasis, 3 with DIP joint affliction, and 2 with aortic valve insufficiency. It is concluded that a quarter of the patients with SO may have hidden psoriatic arthritis.
Kaarela
K
K
Rheumatism Foundation Hospital, Heinola, Finland.
Mattila
J
J
Lehtinen
K
K
Kotaniemi
A
A
Luukkainen
R
R
D000293:Adolescent; D000328:Adult; D001168:Arthritis / Q000276:immunology*; D015535:Arthritis, Psoriatic / Q000276:immunology*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006680:HLA Antigens / Q000032:analysis*; D015235:HLA-B Antigens / Q000032:analysis; D059908:HLA-B13 Antigen; D006801:Humans; D008297:Male; D008875:Middle Aged
D006680:HLA Antigens; D015235:HLA-B Antigens; D059908:HLA-B13 Antigen; C049278:HLA-B16 antigen; C037449:HLA-B17 antigen