What score classifies PMR?

Score ≥4 (without ultrasound) or ≥5 (with ultrasound) classifies PMR with sensitivity 68%/specificity 78% (without US) or 66%/specificity 81% (with US).

What ultrasound features score in PMR criteria?

Subdeltoid bursitis (bilateral = 1 point), glenohumeral or hip tenosynovitis/synovitis (bilateral = 1 point). Ultrasound confirmation of bilateral shoulder involvement adds 1 point.

What ESR or CRP level is typical in PMR?

ESR >40-50 mm/h and/or elevated CRP are typical but not required for diagnosis. Normal ESR/CRP can occur in ∼20% of PMR cases. Rapid steroid response (>70% improvement in 3-4 weeks) also supports diagnosis.

2012 EULAR/ACR PMR Classification Score

Apply the 2012 EULAR/ACR classification criteria for polymyalgia rheumatica. Scores clinical, laboratory, and ultrasound features to distinguish PMR from mimics including RA, GCA, and inflammatory myopathy.

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