Papiloedema noted on routine check up by ophthalmologist
Limited Pre and Post contrast MRI
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A heterogeneously enhancing mass is identified in the fourth ventricle. It causes obstructive hydrocephalus and cerebellar tonsil herniation. In addtion, there is a pontine mass.
Patient underwent posterior craniotomy and resection of fourth ventricular mass. The histology showed pilocystic astrocytoma.