Primary trigeminal neuralgia(TN)may occasionally occur in absence of neurovascular compression.A mechanism other than nerovascular compression may play a role i n ***-resolution computed tomographies(CTs)of 21 consecu...
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Primary trigeminal neuralgia(TN)may occasionally occur in absence of neurovascular compression.A mechanism other than nerovascular compression may play a role i n ***-resolution computed tomographies(CTs)of 21 consecutive TN patients witho ut vascular compression during surgery and 30 healthy volunteers were retrospectively per *** parameters(length,width,and aspect ratio)were obtained in the axial plane for foramen ovale,and in the reconstructed coronal plane for foramen rotundum on both sides in each *** right-sided foramen ovale is slightly narrower than the leftsided,but no difference was observed between the *** correlation was found betwee n the foramen size and the gender in both *** affected side with a narrower ovale foramen(>0.5 mm)and a significantly greater aspect ratio compared with the unaffected s ide may contribute to ***,no significant correlation,but more likely a tendenc y,was found between the right and left sides in size of foramen rotundum(P=0.09).This study has speculatively suggested that a narrow skull foramen may be etiologically import-ant in a small percentage of TN *** recurrent or residual TN was encountered in c ases of TN without vascular compression during surgery,high-resolution CT may help to evaluate the anatomical morphology of skull foramen in great detail.
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