The Link between Reiter's Syndrome and Psoriatic Arthritis

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Abstract
Twelve cases of psoriatic arthritis have been described in detail. One of these appeared to exemplify the coincidence of psoriasis and Reiter''s syndrome. The other 11 demonstrated an intimate link between "psoriatic arthritis" and "Reiter''s syndrome". Patients developed lesions of keratodermia blennorrhagica and manifestations of psoriasis elsewhere on the body. The temporal relationship suggested that this was due to something more than chance. The similarity of certain forms of psoriasis and keratodermia blennorrhagica has been demonstrated both clinically and histologically. The high incidence of ocular manifestations and sacro-iliac joint involvement emphasizes the lack of demarcation bewteen Reiter''s syndrome and psoriatic arthritis. The significance of these observations from an aetiological point of view has been discussed.