PMC3173923_01
Sustained right hemifacial spasm
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F1
The neurological examination was noteworthy for dysarthria and right hemifacial spasm [Figure 1].
(a) T2-weighted coronal and (b) FLAIR axial MRI images showing a right-sided heterogeneous high signal lesion from the midbrain to the pons, extending to the cerebellopontine angle, with a slight mass effect on the fourth ventricle. (c) T1-weighted aspect of the lesion, with heterogeneous low signal and (d) T1-weighted post-gadolinium sagittal image showing its enhanced pattern
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PMC3173923_01_JPN-6-72-g002.jpg
F2
Cranial magnetic resonance imaging (MRI) revealed a right-sided heterogeneous lesion from the midbrain to the pons, extending to the cerebellopontine angle, with a slight mass effect on the fourth ventricle [Figure 2].