Fig. 3From: Intra-articular osteoid osteoma as a differential diagnosis of diffuse mono-articular joint painFemoral neck osteonecrosis after RFA. Proton density (PD)-weighted fat-suppressed (FS) turbo spin echo (TSE) MRI images 3 and 12 months after the intervention. There is a hyperintense signal indicating an excessive necrosis zone around the insertion channel of the ablation probeBack to article page