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[Microsurgical anatomy of meningioma of the posterior cranial fossa].

On the material of 107 intraoperative and 19 section specimens, a topographic anatomy of meningiomas of the posterior cranial fossa was studied. The groups of tumours were distinguished, depending on location of primary meningioma and direction of its growth. Tumour interrelations with the caudal cranial nerves and surrounding vessels were studied.