Unique imaging findings in the facial bones of renal osteodystrophy.

Facial skeletal changes associated with hyperparathyroidism assume 3 radiographic patterns: osteitis fibrosa cystica, fibrous dysplasia, and leontiasis ossea. The 3rd pattern is unique to renal osteodystrophy. We report a case of uremic leontiasis ossea with CT images illustrating significant hypertrophy of the jaws with serpiginous tunneling within the bone and poor visualization of the cortical bone.