Noncontrast transverse (A) and 3-D (B) CT images of the skull of the horse described in Figure 1. A—At the level of the right TMJ, the right MC process (asterisk) does not articulate with the right TB. A mineral dense fracture fragment of the right mandibular coronoid process (white arrow) is displaced medially, adjacent to the temporal fossa. A mineral dense fracture fragment of the right MC process (black arrow) is displaced ventromedially. No abnormalities are evident in the left condylar process and its articulation. The horse’s right side is toward the left of the image, and the image is displayed in a bone window (window width, 4,000 HU; window level, 500 HU) obtained with settings of 120 kVp, 200 mA, 4,500-millisecond exposure time, 2-mm slice thickness, and 18-cm field of view. B—Portions of the zygomatic bone, zygomatic process of the frontal bone, and zygomatic process TB have been digitally removed to better show the fractured right coronoid process (white arrow) and rostrodorsal displacement of the right mandibular condylar process (asterisk) away from right TB mandibular fossa (encircled).
Citation: Journal of the American Veterinary Medical Association 259, 9; 10.2460/javma.259.9.983