PMC3123004_01
Axial time-of-flight MR angiography source images show compression of left facial nerve near its exit zone by left vertebral artery (white arrows in a and b) and compression of left trigeminal nerve near its exit zone by basilar artery (white arrow in c). Normal course of facial nerve (dotted white arrows in a and b) and trigeminal nerve (dotted white arrow in c) is seen on the other side
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F1
Axial time-of-flight (TOF) MR angiography images [Figure 1] and constructive interference in steady state (CISS) images [Figure 2] clearly demonstrated compression near exit zone of facial and trigeminal nerves, thus clinching the diagnosis of PTC.
Axial constructive interference in steady state images again show compression and indentation of left facial nerve near its exit zone by left vertebral artery (white arrows in a and b) and compression of left trigeminal nerve near its exit zone by basilar artery (white arrow in c). Normal course of facial nerve (dotted white arrow in b) and trigeminal nerve (dotted white arrow in c) is again seen
JNRP-2-71-g002.jpg
PMC3123004_01_JNRP-2-71-g002.jpg
F2
Axial time-of-flight (TOF) MR angiography images [Figure 1] and constructive interference in steady state (CISS) images [Figure 2] clearly demonstrated compression near exit zone of facial and trigeminal nerves, thus clinching the diagnosis of PTC.