General Medical Information

Thrombosis of the Upper Pontine Branches

Frank E. Lucente
Samir Shah
Roger Kula

Thrombosis of the upper pontine branches of the basilar artery affects the pyramidal tract, medial lemniscus, spinothalamic tract, and the ventral and dorsal secondary ascending tract of the trigeminal nerve. This causes contralateral hemiplegia that includes the face and tongue. There is also a loss of proprioception, pain, and temperature sensation of the face, extremities, and trunk.

Thrombosis of the Internal Auditory Artery

Thrombosis of the internal auditory artery causes ipsilateral deafness and loss of vestibular function.