To the Editor: In Case 43-1993 (Oct. 28 issue),1 I believe that the two computed tomograms of the head have been reversed. Figure 1 is said to be the preoperative scan, but it clearly shows a bur hole containing air in the parietal bone, whereas Figure 2, described as the postoperative scan, appears to show a typical brain abscess before surgery. I only point this out because anyone concluding that Figure 1 represents an abscess, as opposed to a glioblastoma multiforme, would have to be clairvoyant, even given the brief episode of fever described in the history. A realistic differential.
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