OPTIC-NERVE SHEATH MENINGIOMA WITH MASSIV E INTRAOCULAR GROWTH

Patient We report on an elderly female patient with a diagnosis of an optic nerve sheath meningioma 11 years after onset of ophthalmological symptoms. 8 years after diagnosis and consecutive tumour-resection ne ar the orbital apex the eye bad to be enucleated because of a painful secondary glaucoma. Prior to enucleation computed tomography had revea led extra- and intraocular tumour. Morphological investigations showed a neoplasia which had entered the eye via the optic nerve head, Besid es severe secondary changes there was a diffuse tumour spread within t he choroid and a ''mushroom-like'' growth towards the vitreous cavity. No differences between extra- and intraocular meningioma were found l ight- and electronmicroscopically.