Table 1.

Summary of the results of measurements performed for both trunks of the duplicated abducens nerve

Measured feature (mm)	DE-PCP	DE-TG	DE-IAO	Diameter (within subarachnoid space)
Lateral trunk	19.2	4.3	19.3	0.72
Medial trunk	19.7	6.8	20.5	0.84

DE-PCP distance between the dural entry point of an individual trunk of the duplicated abducens nerve and the apex of the posterior clinoid process, DE-TG distance between the dural entry point of an individual trunk of the duplicated abducens nerve and the inferior border of the trigeminal porus (the trigeminal nerve entrance to Meckel’s cave), DE-IAO distance between the dural entrance of an individual trunk of the duplicated abducens nerve and the central part of the internal acoustic opening