Age, years, median (range) | 37.9 (22.7–83.4) |
Female sex | 20 (80) |
Joint involvement | 20 (80) |
Symmetrical polyarthralgia | 11 (44) |
Arthritis | 9 (36) |
Skin involvement | 15 (60) |
Exanthema | 8 (32) |
Palpable purpura | 5 (20) |
PPGSS | 4 (16) |
Periflexural pattern | 2 (8) |
Other | 4 (16) |
Renal involvement | 4 (16) |
Endocapillary proliferative GN | 1 (4) |
Membranoproliferative GN + FSGS | 1 (4) |
Undetermined | 2 (8) |
Neurological involvement | 3 (12) |
Mononeuritis | 1 (4) |
Mononeuritis multiplex | 1 (4) |
Guillain-Barré syndrome | 1 (4) |
Other | 11 (44) |
Myalgia | 5 (20) |
Asthenia | 3 (12) |
Elevated liver enzymes | 1 (4) |
Myopericarditis and pleural effusion | 1 (4) |
Spleen infarcts | 1 (4) |