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Modern imaging includes many studies performed to examine limited fields of view (i.e., paranasal sinus studies). These studies are frequently retrospectively coned to the limited field of view and are often examined only at one window and level setting. However, classic radiology teaching demands that all irradiated structures be examined by a qualified physician; for examples, on an intravenous pyelogram the examiner should look at not only the kidneys, ureters, and bladder, but also the bones, soft tissues, and gas patterns. This article illustrates unsuspected intracranial pathology noted on computed tomographic examinations of the paranasal sinuses and temporal bones.
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Accepted: March 8, 1995
Received in revised form: February 20, 1995
Received: October 25, 1994
© 1997 Published by Elsevier Inc.