PMC4360547_01
Showing large CSF containing lesion pushing cerebellum up and forward
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F1
Magnetic resonance imaging (MRI) showed dilated supratentorial ventricular system with a dilated cisterna magna [Figure 1].
MRI taken 5 months after surgery showing shrunken posterior fossa cyst in T1W, and bilateral SD collection in T2W images
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F2
The magnetic resonance imaging (MRI) performed after 5 months showed remarkable decrease of the cyst volume, smaller ventricular system, and bilateral collection of thin layer-subdural fluid [Figure 2].
Images taken after recurrence of symptoms in the 6th month after installation, showing expanded posterior fossa cyst with the proximal catheter within the cyst cavity both in T1W and T2W images
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F3
Her symptoms recurred in a month and new MRI showed disappearance of the subdural collection with moderated expansion of the ventricles and the posterior fossa cyst [Figure 3].
Three-dimensional CT scanning in different views showing detachment of the inlet connector and the short catheter attached to it, from flat inferior surface of the flushing device
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F4
It was planned for a shunt series imaging but 3D CT scan of the posterior fossa region disclosed disconnection of the inlet connector and ventricular tube from the bottom of the valve [Figure 4].
The fractured inlet connector and the device retrieved from the patient compared with the schematic drawing of the original sample. The arrow pointing the exact place of fracture at the centre of the device
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F5
On exploring the shunt during the operation, the cyst catheter and the part of the connector, which was tied to it [Figure 5], were retrieved from the cyst and a new flushing device and ventricular catheter were installed.