Figure 1. Steps in operative approach and craniotomy position in reference to vascular structures.

Figures (a-d) as referenced in the text show steps in the SOTT operative approach and key structures encountered in the operative field. Figure (e) shows the position of burrholes and craniotomy in relation to important underlying vascular structures.

TS - transverse sinus, SS - superior sagittal sinus, SOTT - suboccipital transtentorial

Figure 1e courtesy: Mr Cormac Gavin