Delayed traumatic intracerebral hemorrhage associated with dolichoectasia of the middle cerebral artery

与大脑中动脉扩张相关的迟发性创伤性脑出血

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Abstract

A 74-year-old man tripped while walking. He had not been administered antiplatelet or anticoagulation therapy. At presentation, the patient was well-oriented, with a blood pressure of 130/91 mmHg, while present with tetraplegia and numbness in the upper extremities. Blood work revealed normal findings, while magnetic resonance imaging of the cervical spine revealed severe cord compression at the C3/4 and C4/5 levels. Cranial computed tomography (CT) showed elongated masses in the Sylvian fissures without intracranial hemorrhage. CT taken 2 days later revealed an intraparenchymal hemorrhage located mainly in the right putaminal region, while the patient showed no signs of neurological deterioration. Three-dimensional CT angiography (3D CTA) demonstrated marked ectasia and elongation in the right internal carotid, bilateral middle cerebral, and left anterior cerebral arteries. The patient was conservatively managed. Repeat 3D CTA performed 3 months later showed no de novo abnormalities in the ectatic cerebral arteries. It is assumed that the delayed traumatic intracerebral hemorrhage was caused by disruption of the perforating vessels arising from the ipsilateral dolichoectatic middle cerebral artery. Periodical surveillance neuroimaging is recommended for patients with head trauma who are simultaneously diagnosed with incidental dolichoectasia, especially when complicated with cervical cord injury.

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