Tentorial meningiomas extending along transverse and sigmoid sinuses to jugular vein bulb

The authors describe 3 patients with tentorial meningiomas (type T6-T7 according to classification by M.G. Yasargil) extending into transverse and sigmoid sinuses towards jugular vein. The authors also analyze foreign experience in the treatment of similar meningiomas and difficulties accompanying choice of treatment strategy for such patients. To preserve functionally significant brain structures and functional status, the authors performed subtotal resection and decompression of caudal nerves within jugular foramen in each case. Neurological symptoms partially regressed in postoperative period in all patients. In long-term follow-up, continued tumor growth in 2 out of 3 patients required redo surgery. Further research of multimodal treatment approach to such patients, including combination of surgery with stereotactic radiotherapy, seems perspective considering close relationship of such meningiomas with functionally significant brain structures, impossibility of safe simultaneous total resection and high probability of continued tumor growth after subtotal resection.