From the case:
Phase mismapping
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Figure 1: Apparent enhancement in the left occipital lobe and right temporal lobe in a patient with malignancy.
Figure 2: windowed slice demonstrates the phase mismapping artefact from the superior sagittal sinus periodically appearing from left to right, accounting for apparent occipital enhancement.
Figure 3: annotated image to highlight the periodicity of phase mismapping.
Case Discussion
This case illustrated from flowing blood in the sagittal sinus and carotids. Periodic ghosting gives the impression of an enhancing lesion in the left occipital lobe as well as anterior to the right temporal horn. Wide windowing demonstrates the ghosting extending beyond the confines of the patient's anatomy.
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