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. 2021 Aug;62(4):411–419. doi: 10.3325/cmj.2021.62.411

Figure 2.

Figure 2

A magnetic resonance (MR) exam in Patient 1 at the age of 2 years. A mediosagittal MPRAGE section shows a passable mesencephalic aqueduct without an aqueductal membrane (arrow in A). Cerebrospinal fluid movement artifacts are visible on the T2 SPC sequence in the mesencephalic aqueduct (arrowhead in B). An axial MPRAGE section through the cranial part of the mesencephalic aqueduct shows a maintained aqueduct lumen (arrow in C). An axial MPRAGE section shows the patency of the mesencephalic aqueduct at the level where a membrane was previously visible (arrow in D). An axial MPRAGE section through the caudal part of the mesencephalic aqueduct shows a maintained aqueduct lumen (arrow in E). Axial (F) and coronal (G) T2 sections through the brain parenchyma show normal volume of the lateral ventricles and third cerebral ventricle.