The diagnosis of<unk><unk>  is easily confirmed when the cutaneous manifestations of psoriasis coexist with<unk> . There is no definitive<unk>  test for<unk><unk> . It must be differentiated from other<unk> es based on the joint involvement patterns, clinical features, imaging and laboratory studies. The CASPAR criteria (ClASsification criteria for<unk><unk>  has been propsed to diagnose<unk><unk>  using point scoring system. The specificity of this criteria is approximately 98.7% and sensitivity is approximately 91.4%.
Psoriatic arthritis diagnostic study of choice
Rheumatoid arthritis diagnostic study of choice
Psoriatic arthritis other diagnostic studies
Septic arthritis other diagnostic studies
Polymyalgia rheumatica diagnostic study of choice
Psoriatic arthritis differential diagnosis
Septic arthritis differential diagnosis
Rheumatoid arthritis other imaging findings