A Case of Lateral Sinus Thrombosis Presenting with Cranial Nerve Syndrome

ABSTRACT

Cerebral venous thrombosis (CVT) is a disease sometimes associated with a wide variety of clinical signs and symp-toms. Single or multiple cranial nerve palsies without evidence of any other signs and symptoms have not, so far, been considered as a relevant syndrome of CVT. A 49-year-old woman was admitted to our hospital because of diplopia, vertigo with tinnitus and ataxia which had begun approximately three weeks before. Neurological examination revealed a right 6th nerve palsy by a red glass test and an impaired tandem walking test. Laboratory tests including CSF exami-nation and brain MRI were normal but MR venography and following 4-vessel angiography showed thrombosis in the left transverse and sigmoid sinuses and suspicious thrombosis in the right lateral sinus. She was treated with heparin and proceeded to get well.