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TABLE 1: Methodology for identifying the lateral tentorial sinus by type and configuration according to Guppy et al (14) (Fig 2)
LTS Type Configuration
I Branches converge to form a single trunk
II Multiple independent draining veins
III Draining veins form venous lakes in the tentorium
LTS Type	Configuration
I	Branches converge to form a single trunk
II	Multiple independent draining veins
III	Draining veins form venous lakes in the tentorium