Table 1.

The relationship between tumors and GV, tentorium of cerebellum, and cerebral falx

	No. of Cases
Tumors and GV
Posteriorly and inferiorly to GV	12
Anteriorly and superiorly to GV	5
Laterally to GV	3
GV completely wrapped	1
Contact area between tumors and adjacent structures
Contact area between tumor and tentorium	4
Contact area between tumor and FT junction	5
Contact area between tumor and inferior surface of straight sinus	5
Contact area between tumor and GV	4
Contact area between tumor and posterior segment of GV and ICVs	2
Contact area between tumor and posterior segment of ICVs and pineal gland	1
Enhancement of FT junction
Yes	12
No	9
Dural tail sign in FT junction
Yes	5
No	16