Figure 1
From: Treatment of osteoblastoma at C3-4 in a child: a case report
Preoperative radiographs. (A): Anteroposterior view shows an oval high-intensity area and a well-defined rim from C3 to C4 in the right side. (B): Lateral radiograph shows a lesion arising from the posterior arch of C3-4. (C) and (D): Postoperative anteroposterior and lateral plain radiographs show the tumor has been removed grossly and internal fixation has been performed.