PMC6479264_01
Unenhanced CT head demonstrates absence of the normal falx cerebri in the expected midline location (arrows).
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This was unremarkable except for an incidental complete absence of the falx cerebri in the midline (Fig. 1).
Unenhanced CT head demonstrates small caliber of the superior sagittal sinus (arrow).
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The superior sagittal sinus appeared to be small in caliber (Fig. 2); however, there were no large anomalous venous channels identified on the present unenhanced examination.