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Extravasation of Intracranial Aneurysm During Computed Tomography Angiography: Mimicking a Blood Vessel

Ryu, Chang Woo MD*; Kim, Sang Joon MD; Lee, Deok Hee MD; Suh, Dae Chul MD; Kwun, Byung Duk MD

Journal of Computer Assisted Tomography: September-October 2005 - Volume 29 - Issue 5 - p 677-679
doi: 10.1097/01.rct.0000176015.75169.12
Neuroimaging: Case Report
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Two cases of contrast media extravasation of a ruptured aneurysm during computed tomography angiography (CTA) are described. The contrast media extravasation appeared as a highly attenuated twisted ribbon-like structure originating from the aneurysmal dome, and this mimicked a vascular structure. Because rebleeding of an aneurysm is accompanied by disastrous consequences, it is important to understand the imaging feature of active bleeding on CTA.

From the *Department of Radiology, Inha University Hospital, Inha University College of Medicine, Incheon, Korea, †Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, and ‡Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Received for publication June 2, 2005; accepted June 20, 2005.

Reprints: Sang Joon Kim, Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Poongnap 2-dong, Songpa-gu, Seoul 138-736, Korea (e-mail: sjkimjb@amc.seoul.kr).

© 2005 Lippincott Williams & Wilkins, Inc.