Table 1.
Patient characteristics between the PMR and EORA groups.
Fig 1.
FDG-PET/CT findings of polymyalgia rheumatic.
(A) Shoulder girdle: (a) scapulohumeral joint (synovitis), (b) periarticular area of the scapulohumeral joint (bursitis, subtendinous bursa of infraspinatus), (c) biceps brachii tendon (vaginal synovitis), and (d) sternoclavicular joint (synovitis). Perivertebral lesions: (j) intervertebral joint of the lower cervical vertebra (synovitis), (k) spinous process of the lower cervical vertebra (bursitis), (l) intervertebral joint of the lumbar vertebra (synovitis), and (m) spinous process of the lumbar vertebra (bursitis). (B) FDG-PET/CT findings of polymyalgia rheumatica. Pelvic girdle: (e) enthesis of the pectineus muscle (enthesitis), (f) the vicinity of the enthesis of the rectus femoris muscle (enthesitis, enthesis of the rectus femoris muscle; bursitis, iliopectineal bursa), (g) hip joint (synovitis), (h) lateral side of the greater trochanter (bursitis, trochanteric bursa), and (i) ischial tuberosity (enthesitis and bursitis; 1. enthesis of the biceps femoris, 2. sciatic bursa of the gluteus maximus, 3. enthesis of the semitendinosus).
Table 2.
Sites of abnormal FDG accumulation in patients with PMR and EORA.
Table 3.
Comparison of the SUVmax for abnormal FDG accumulation sites on PET/CT between the PMR and EORA patients.
Fig 2.
PET/CT scores in patients with PMR and EORA.
The PET/CT scores were significantly higher in the patients with polymyalgia rheumatica (PMR) than in the patients with elderly-onset rheumatoid arthritis (EORA) (P = 0.0003).