[Surgical treatment of meningiomas of medial part of sphenoid ala and en-plaque meningiomas of perisellar area].

The authors present some clinical aspects of their own experience in the operative treatment of clinoidal and en-plaque suprasellar meningiomas which account for 5.6% of all intracranial meningiomas in Department of Neurosurgery treated in the years 1987-93. Visual loss was the first symptom of disease. In conclusion, the authors stress the still unacceptably long period between the onset of symptoms and correct diagnosis. Possibilities of total removal are limited by the size of tumour and compression of adjacent structures, and the chance for visual improvement is low for that reasons. Visual improvement was observed in only one case after surgery, however in 5 cases worsening of visual acuity was noted in postoperative period. Mortality rate was 6.2%. Adjuvant radiotherapy was performed in non patient. Long term results in ophthalmological and neurological aspects are discussed.