We report a partially thrombotic giant basilar artery aneurysm that was detected with computed tomographic (CT) scans and confirmed by angiography.
REPORT OF A CASE
A 51-year-old man experienced a leftsided headache in October 1975, three years before admission to a hospital. Three months later, he had a syncopal attack. A CT scan was reported to be normal. One year later, an attack of diplopia, nausea, and vomiting lasted for three days. At that time, examination showed a blood pressure of 250/150 mm Hg, nystagmus, and ataxia. Cerebrospinal fluid was under a pressure of 300 cm H2O, without other abnormalities. A large mass in the posterior fossa with hydrocephalus was evident on a CT scan. A ventriculoperitoneal shunt procedure was carried out, followed by CT scans with and without intravenous (IV) injection of contrast medium. The noncontrast scan disclosed a large mass in the posterior fossa (Fig 1), with an
Naheedy MH, Tyler HR, Wolf MA, Hammerschlag SB. Diagnosis of Thrombotic Giant Basilar Artery Aneurysm on Computed Tomographic Scan. Arch Neurol. 1982;39(1):64–65. doi:10.1001/archneur.1982.00510130066021
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