Reason: left TMJ pain, + trismus, pain with chewing and left sided headaches History: eval for left TMJ dislocation. Left temporomandibular joint:There is normal anterior translation of the mandibular condyle on open-mouth images; however, the articular disc of the left TMJ is dislocated anteriorly on both the open and closed mouth images. The condyle itself appears normal without frank arthritic changes.Right temporomandibular joint:There is also normal anterior translation of the mandibular condyle on open mouth images with appropriate positioning of the articular disc.
Abnormal anterior displacement of the left temporomandibular joint articular disc without reduction.