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. Author manuscript; available in PMC: 2023 Aug 1.
Published in final edited form as: Can J Ophthalmol. 2021 May 28;57(4):217–227. doi: 10.1016/j.jcjo.2021.04.025

Figure 7:

Figure 7:

Visualization of CN III schwannoma using constructive interference in steady-state (CISS) sequences.

A. Axial T1+C FS showing an enhancing lesion corresponding to the cisternal segment of CN III (arrow), just anterior to the right cerebral peduncle.

B. Coronal T1+C FS showing the same right CN III schwannoma (arrow) at the cisternal segment.

C. Axial CISS showing the filling defect (arrow) corresponding to the enlarged right CN III. Non-contrast techniques can be used to screen for lesions, and follow known lesions over time.

D. Coronal reformatted image from source axial CISS acquisition showing the right CN III, similar to the coronal contrast sequence (Figure 7B).