Radiography of the bones and joints was performed in 133 psoriatic patients; osteoscintigraphy with 99mTc-phosphate compounds was also performed in 42 of them. On the basis of x-ray findings 3 types of osteoarticular psoriasis were singled out: psoriatic polyarthritis, psoriatic polyarthrosis and psoriatic arthropathy. The most ample information on the type, activity and spreading of a pathological process in the bones and joints in psoriasis can be obtained from the combination of the x-ray and radionuclide methods.
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