Choroid plexus papilloma (Q88445)

Papilloma of the choroid plexus is a rare benign type of choroid plexus tumour, accounting for 1% of all brain tumors (but sometimes arising ectopically in the brain parenchyma), often occurring in the fourth ventricle (in adults) and the lateral ventricle (in children) and presenting with nausea, vomiting, papilloedema, abnormal eye movements, as well as enlarged head circumference, seizures and gait impairment due to an increase in intracranial pressure.