Table 2

Prevalence of inflammatory MRI and structural CT lesions

(A) Prevalence of inflammatory MRI lesions in patients with psoriasis and healthy controls
Patients with psoriasis
N=55
Healthy controls
N=30
p Value
Any inflammation N (%)26 (47)4 (13)0.002
Synovitis N (%)21 (38)2 (7)0.002
Osteitis N (%)6 (11)3 (10)1.000
Periarticular inflammation N (%)2 (4)3 (10)0.340
Tenosynovitis N (%)2 (4)00.538
(B) Prevalence of structural CT lesions in patients with psoriasis
ErosionsEnthesiophytes
Lesions, N total27306
 N metacarpal head 2 (%)15 (55)113 (37)
 N phalangeal base 2 (%)1 (4)64 (21)
 N metacarpal head 3 (%)10 (37)58 (19)
 N phalangeal base 3 (%)1 (4)113 (37)
Patients, N positive (%)16 (29)55 (100)
 N metacarpal head 2 (%)11 (20)49 (89)
 N phalangeal base 2 (%)1 (2)38 (69)
 N metacarpal head 3 (%)8 (15)41 (75)
 N phalangeal base 3 (%)1 (2)37 (67)
N (mean±SD)/patient0.49±0.945.62±3.30