Fig. 8From: Diagnositic value of pelvic enthesitis on MRI of the sacroiliac joints in enthesitis related arthritisThe number of patients with or without clinical enthesitis, correlated to pelvic enthesitis on MRI shown separately for the two groups ERA+ and ERA-. (MRI = Magnetic Resonance Imaging, ERA = Enthesitis Related Arthritis)Back to article page