Arthroscopic Excision of Intra-Articular Osteoid Osteoma at the Elbow

Figure 2

Preoperative radiographic images. The anteroposterior radiograph (a) and computed tomography images (b: axial, c: sagittal) depict a nidus comprising central sclerosis with circumferential radiolucency (arrowhead) at the olecranon/coronoid fossa of the humerus.

(a)

(b)

(c)