A 40-year-old man had hyperostosis frontalis interna that showed a "bull's eye" appearance on bone imaging. He was evaluated for low back pain; CT scans were not obtained. The authors believe that the pattern of uptake noted on this bone imaging was suggestive of the disease extending centripetally. No previous bone scans were available to correlate this.
From the Division of Nuclear Medicine, Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania