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자료유형
학술저널
저자정보
Won Ho Cho (Medical Research Institute Pusan National University College of Medicine and Hospital) Hyuk Jin Choi (Medical Research Institute Pusan National University College of Medicine and Hospital) Kyoung Hyup Nam (Pusan National University College of Medicine and Hospital) Jae Il Lee (Medical Research Institute Pusan National University College of Medicine and Hospital)
저널정보
대한뇌혈관외과학회 Journal of Cerebrovascular and Endovascular Neurosurgery Journal of Cerebrovascular and Endovascular Neurosurgery Vol.17 No.4
발행연도
2015.1
수록면
324 - 330 (7page)

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Contrast extravasation on computed tomography angiography (CTA) is rare but becoming more common, with increasing use of CTA for various cerebral vascular diseases. We report on two cases of spontaneous subarachnoid hemorrhage (SAH) in which the CTA showed an upper basilar trunk saccular lesion suggesting ruptured aneurysm. However, immediate subsequent digital subtraction angiography (DSA) failed to show a vascular lesion. In one case, repeated follow up DSA was also negative. The patient was treated conservatively and discharged without any neurologic deficit. In the other case, the patient showed sudden mental deterioration on the third hospital day and her brain CT showed rebleeding. The immediate follow up DSA showed contrast stagnation in the vicinity of the upper basilar artery, suggestive of pseudoaneurysm. Double stents deployment at the disease segment was performed. Due to the frequent use of CTA, contrast extravasation is an increasingly common observation. Physicians should be aware that basilar artery extravasation can mimic the appearance of an aneurysm.

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