BLEPHAROSPASM IN ASSOCIATION WITH A LOWER PONTINE LESION

A patient with neurofibromatosis type I and breast carcinoma developed a bilateral but asymmetric blepharospasm and paresis of the left abdu cens muscle over a 2-week course. MRI disclosed a small lesion in the left dorsomedial lower pontine region. Electrodiagnostic investigation s revealed bilateral R1 responses after stimulation of the left suprao rbital nerve and enhancement of R1 and R2 recovery curves. We conclude d that lesions in the lower pontine tegmentum may cause blepharospasm.