TOTAL RESECTION OF TORCULAR HEROPHILI HEMANGIOPERICYTOMA WITH RADIAL ARTERY GRAFT - CASE-REPORT

A CASE OF recurrent hemangiopericytoma involving the torcular herophil i is reported, with special reference to the reconstruction of the str aight sinus with a radial artery graft. In preoperative investigations , the tumor was found invading the straight and transverse sinuses. Th e involved occipital superior sagittal sinus had been removed in the p revious surgery, A collateral bypass was observed from the superior sa gittal sinus to the straight sinus, and the veins of Rosenthal were no t opacified, suggesting poor venous drainage from the deep venous syst em to the cavernous sinus, We considered it necessary to reconstruct t he straight and right transverse sinuses to achieve total removal of t he tumor. The affected sinuses were removed and were successfully reco nstructed with a radial artery interposition graft, between the straig ht and right transverse sinus. The postoperative course was good, and the bypass was patent on the postoperative angiogram. The details of t he operative technique are described.