Fig. 1.

Head computed tomography of a 65-year-old male presenting with headache. Axial (A, B) and coronal (C) images show a 19-mm-long, well-defined, left parietal bone mass near the squamosal suture. The main part of the mass is located in a diploic space, and the trabeculae are sparse but well preserved. There is also a mild bony bulge, although there are no tears in the inner or outer plates.