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Subtle computed tomography abnormalities in cerebral deep sinus thrombosis

Tomomi Iwashita1, Kazuo Kitazawa, Jun-Ichi Koyama

  • 1Department of Emergency and Intensive Care Medicine, Shinshu University School of Medicine, Matsumoto, Japan.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|November 10, 2006
PubMed

A patient with cerebral deep sinus thrombosis, which was not diagnosed on the first examination, is reported. A 46-year-old woman presented with headache and vomiting. Neurological examination and a brain computed tomography (CT) scan showed no obvious abnormal findings. The patient suffered disturbed consciousness on the day after the examination, and was admitted to our emergency centre. A CT scan and magnetic resonance imaging revealed an ischaemic lesion in the left basal ganglia, suggesting deep sinus occlusion. Anticoagulant therapy was administered. One day after admission, a CT scan showed a haematoma and severe brain swelling in the same region. Cerebral angiography demonstrated a straight sinus occlusion. Intracranial pressure was not controlled with hypothermia, and the patient died 25 days after admission. Review of the initial CT scan revealed subtle, early findings of deep venous thrombosis that were missed on first examination.

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