Meningiomas of the lateral ventricle.

The authors present two cases of large meningiomas of the lateral ventricle. In both cases the first diagnosis of the disease was cerebral ischaemia. Tumours did not produce symptome of intracranial hypertension, and the most common symptoms of these tumours - hemianopia and papilloedema - were also not observed. Both tumours did not originate from the choroid plexus, probably developing from the tela conjunctiva of the vessels.