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FIG 5. 10-year-old boy.
A, A transverse sonographic section of the left TMJ obtained while the patient was in the closed-mouth position. The distance between the articular capsule (arrowhead) and the lateral surface (arrow) of the mandibular condyle is 5 mm.
B, A transverse CT section at the level of the mandibular condyle obtained while the patient was in a closed-mouth position. Note the hyperdense area in front of the left mandibular condyle indicating the anteriorly dislocated articular disk. Disk displacement on A is a true-positive result.
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