Distribution of clinical findings and organ involvement (n=52)
| Constitutional symptoms, n (%) | |
| Fatigue | 31 (59.6) |
| Tiredness | 16 (30.7) |
| Night sweats | 15 (28.8) |
| Weight loss | 14 (26.9) |
| Fever | 13 (25) |
| Retroperitoneal fibrosis, n (%) | 23 (44.2) |
| Lymphadenopathy, n (%) | 20 (39.2) |
| Any cardiovascular involvement, n (%) | 15 (28.8) |
| Periaortitis | 12 (23.1) |
| Pericardium | 5 (9.6) |
| Coronary periarteritis | 4 (7.7) |
| Abdominal aort aneurysm | 1 (1.9) |
| Orbital pseudotumor, n (%) | 12 (23.1) |
| Orbitalmass/proptosis | 6 (11.5) |
| Extraoculary muscles | 6 (11.5) |
| Pancreas, n (%) | 12 (23.1) |
| Major salivary glands, n (%) | 11 (21.2) |
| Lacrimal glands, n (%) | 9 (17.3) |
| Mediastinal fibrosis, n (%) | 6 (11.5) |
| Ear, nose, sinuses, n (%) | 5 (9.6) |
| Lung fibrosis, n (%) | 5 (9.6) |
| Skin , n (%) | 4 (7.7) |
| Pleura, n (%) | 4 (7.7) |
| Gall bladder and Biliary ducts, n (%) | 4 (7.7) |
| Thyroid, n (%) | 3 (5.8) |
| Liver, n (%) | 3 (5.8) |
| Kidney (mass) , n (%) | 3 (5.8) |
| Pachymeningitis, n (%) | 2 (3.8) |
Breast involvement: (n=1), tubulointerstitial nephritis (n=1).