Abstract
It is well known that psoriasis can be a complication with arthropathy, but it is rarely reported to be involved with the hip joints. Recently, however we have experienced two such cases, one with ankylosis of the hip and the other with enthesopathy of the iliopsoas tendon.
Case 1 was a 69-year-old female, diagnosed as having psoriasis about 10 years previously. She had also had osseous ankylosis of the bilateral hip joints from about 3 years ago. In view of the occurrence of both skin lesions and arthropathy in a ship as well as typical nail change and DIP joint dysfunction, this case was diagnosed as psoriatic arthropathy.
Case 2 was a 35-year-old male, regarded as having psoriasis from about 5 years ago. His dermal lesions were improved by treatment with etretinate. He complained of lumbago and right coxalgia about 6 months after the treatment was started. In spite of the improvement of the skin lesions, ossification progressed along the iliopsoas tendon. Then, the treatment was suspended. With this the progressive ossification ceased. Thus the symptoms might have been induced by the side effects of etretinate rather than by psoriatic arthropathy.
