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Pseudotumor artifact of the dorsum sella in CT scanning
D P Tihansky1, J Crossen, H Markowitz
1Department of Radiology, New York Medical College, Valhalla 10595.
Abstract:
Misinterpretation of CT scans in the skull base can result from artifacts due to abrupt density variations of anatomical structure. In this report a wide dorsum sella with low attenuation medullary cavity was initially mistaken on axial scans for an enhancing suprasellar mass. The correct diagnosis was made with follow-up scans based upon thinner cuts, slice angulation negative to the baseline, and reconstructed coronal and sagittal images.
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