Post-operative unilateral internuclear ophthalmoplegia following basilar pneumocephalus after resection of C1 intradural extramedullary tumor

Internuclear ophthalmoplegia (INO), a gaze abnormality causing weak adduction of the affected eye and abduction nystagmus of the contralateral eye, results from damage of the medial longitudinal fasciculus (MLF) in the dorsomedial brainstem tegmentum of either the pons or the midbrain. When pneumocephalus, which is air or gas within the cranial cavity, becomes symptomatic then it is called tension pneumocephalus. Tension pneumocephalus affecting the brainstem has been known to various ocular symptoms such as 3rd nerve palsy [1] and pupillary changes [2].
Source: Clinical Neurology and Neurosurgery - Category: Neurosurgery Authors: Tags: Case Report Source Type: research