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Destruction of much of the right parietal bone, portions of the left parietal bone, and the occipital bones, with areas of erosive change. The erosion in the right occipital bone extends to the posterior margin of the right mastoid air cells.
Associated with thinning of the overlying skin with thickening of the dura in the regions of complete loss of bone. Nonspecific thickening near the right vertex. There are no definite drainable fluid collections.