Fig 1.
Sagittal (1) and coronal (2) computed tomographic (CT) views of a normal condyle and the 4 radiographic signs of temporomandibular joint degenerative joint disease. A1. Normal condyle; A2. Normal condyle. B1. Surface erosion (arrow). B2. Surface erosion (arrow). C1. Subcortical cyst (arrow). C2. Subcortical cyst (arrow). D1. Osteophyte formation (arrow). D2. Sclerosis of the condylar head. E1. Generalized sclerosis of the condylar head, neck of the condyle, and articular fossa. Osteophyte formation is also present. E2. Generalized sclerosis of the condylar head, neck of the condyle, and articular fossa.