Neurol India Close
 

Figure 1: Preoperative images of trochlear nerve CH. A moderate high-density circular lesion (a) with significant enhancement (b) was found in the left cistern of the brainstem on CT scan. In MR, the lesion showed hypointense in T1w axial image (c), mixed signal intense in T2w axial image (d) and hyperintense in FLAIR (e), with heterogeneous enhancement on postgadolinium T1-weighted sequences (f-h). No obvious cerebrovascular abnormality was found in CT angiography (i)

Figure 1: Preoperative images of trochlear nerve CH. A moderate high-density circular lesion (a) with significant enhancement (b) was found in the left cistern of the brainstem on CT scan. In MR, the lesion showed hypointense in T1w axial image (c), mixed signal intense in T2w axial image (d) and hyperintense in FLAIR (e), with heterogeneous enhancement on postgadolinium T1-weighted sequences (f-h). No obvious cerebrovascular abnormality was found in CT angiography (i)