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	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

In the October issue of the ARCHIVES 2 coronal computed tomographic (CT) slices of a patient "before and after successful eradication of frontal sinuses"¹ appeared on the cover and on page 1094. Unfortunately, the CT plane angulation differs completely, as estimated in Figure 1. The oblique CT slice "before" shows the paired nasal bone and in the center of it, some mucosa due to the partial volume effect,² suggesting a complete blockage of the frontal sinuses. The CT slice "after" is effectuated more vertically thus not cutting the paired nasal bone but the 2 frontal processes of the maxillary bone. Metson and Gliklich¹ did not drill out the paired nasal bones that resulted in severe cosmetic damage. As Metson et al³ point out in a former publication, results of surgery in endonasal sinus therapy are easier to compare using equal CT plane angulations.

Figure appears in full text version. Computed tomographic scan before and after . . . [Full Text of this Article]