PMC4866059_01
Postoperative fluid-attenuated inversion recovery immediately after the operation (a), at 5 days after the operation (b) and at 20 days after the operation (c). Note that hyperintensity in the bilateral basal ganglia and thalami improved with time
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F1
Fluid-attenuated inversion recovery (FLAIR) magnetic resonance imaging (MRI) of the head after the CT scan showed moderate hyperintensity in the bilateral caudate nuclei, putamina, and thalami [Figure 1a]. At 5 days after the operation, FLAIR showed decreased hyperintensity in the basal ganglia and thalami, DWI no new lesion, and postcontrast T1WI no CVST [Figure 1b]. At 20 days after the operation, FLAIR showed no hyperintensity in the basal ganglia or thalami [Figure 1c].
Sagittal plane computed tomography images immediately after the operation (a) and at 1 month after the operation (b). Arrows indicate the straight sinus. Hyperdensity in the straight sinus resolved spontaneously
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F2
We reviewed postoperative sagittal plane CT images, and we found that the CT immediately after the operation revealed transient hyperdensity in the straight sinus, which hyperdensity was not observed on CT at 1 month after the operation [Figure 2a and b].