Figure 5

Figure 5

Sagittal fluid-sensitive MRI images showing oedematous features (arrows) adjacent to the vascular channels in patients with osteoarthritis (OA) and inflammatory arthritis. Bone marrow lesions adjacent to the anterior cruciate ligament (ACL) vascular channel in A, patient with early OA and B, patient with undifferentiated arthritis. Bone marrow lesions and intraosseous cysts adjacent to the posterior cruciate ligament (PCL) vascular channel in C, patient with early OA and D, patient with psoriatic arthritis.