Figure 1From: Characterization of new bone formation in gout: a quantitative site-by-site analysis using plain radiography and computed tomography Examples of the features of new bone formation (NBF) observed by plain radiography and computed tomography in patients with gout. A. Spur. B. Osteophyte. C. Periosteal NBF. D. Ankylosis. E. Sclerosis. Top panel shows plain radiographic images and lower panel shows CT images. CT, computed tomography.Back to article page