PMC4750309_01
Magnetic resonance imaging showing asymmetric ventriculomegaly and membrane at the left foramen of Monro. (a) T2-weighted coronal acquisition. (b) T1-weighted axial acquisition
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F1
The constructed interference in steady state three-dimensional sequence revealed a membrane blocking the foramen of Monro but no lesion [Figure 1].
(a) Endoscopic view of membranes at the foramen of Monro. (b) Dilated foramen after formanioplasty
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F2
There were membranes at ipsilateral foramen of Monro which were fenestrated [Figure 2].
Magnetic resonance imaging at follow-up showing patency of septostomy
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F3
An MRI done at 15 months showed septostomy defect; however, the membranes at foramen Monro were persistent [Figure 3].