Abstract
Case report describes a 57-year-old man with a long-term chronic psoriasis treated only with methotrexate in combination with non-steroidal anti-inflammatory drugs. In relatively short time psoriasis has transformed into psoriatic spondylitis and psoriatic arthropathy of the fifth degree.
This case shows how important it is to start proper treatment earlier before appears irreversible change in joints. Early recognition of psoriatic arthritis by dermatologist and close cooperation with the rheumatologist may significantly affect the prognosis and quality of life.