[Blood supply of intracranial meningiomas involving the cavernous sinus]

The normal topographic-anatomic interrelationships of the cavernous sinus and its structures were studied in 12 preparations of pathology-free brains removed from the skull en bloc with the meninges and the skull base bones. In 14 cases of fatal sphenoidal wings meningiomas of the medial and total variants the microsurgical anatomy of these tumorus was studied by polychromatic injection of cerebral and tumourous vessels with a subsequent macro-micro preparation. The peculiarites of the interrelationship between the tumour and the cavernous sinus with its structures and the major vesels, and the blood supply sources to the tumour were revealed. Contraindications for total exirpation of the tumours were precised, and the necessity of microsurgical technique was substantiated.