Primary trigeminal neuralgia(TN) may occasionally occur in absence of neurovascular compression.A mechanism other than nerovascular compression may play a role in ***-resolution computed tomographies(CTs) of 21 consec...
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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 in ***-resolution computed tomographies(CTs) of 21 consecutive TN patients without vascular compression during surgery and 30 healthy vohinlccrs were retrospectively *** 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 subject-The right-sided foramen ovate is slightly narrower than the left-sided,but no difference was observed between the *** correlation was found between 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 side may contribute to ***,no significant correlation,but more likely a tendency,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 important in a small percentage of TN *** recurrent or residual TN was encountered in cases 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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