Bilateral gaze paralysis with positive computerized tomography findings. A clinicoanatomic correlation.

The subacute development of an almost isolated bilateral gaze paralysis in a patient with mycosis fungoides allowed a unique opportunity for in vivo clinicoanatomical correlation when enhanced computerized tomography (CT) scan revealed two extremely small lesions of the pontine tegmentum. The larger lesion involved the region occupied by the medial longitudinal fasciculus and the paramedian pontine reticular formation (PPRF) bilaterally, and was alone sufficient to account for the eye movement disorder.