Transient internuclear ophthalmoparesis associated with mutism following midline cerebellar tumour surgery in an 8-year boy

Mutism and neurobehaviour symptoms are well known features, which may occur following surgical excision of mass lesion of various histopathologies in the posterior cranial fossa, during the postoperative period. Mutism may be rarely associated with ataxia of eyelid closure and paresis of external ocular muscles. However, internuclear ophthalmoparesis is not reported in association with mutism following posterior cranial fossa surgery. We report an 8-year–boy, who developed internuclear ophthalmoparesis following suboccipital craniectomy for decompression of vermian medulloblastoma. The clinical features, aetiopathogenesis, management of transient internuclear ophthalmoparesis associated with mutism and pertinent literature is reviewed in short.