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Updated: Mar 16, 2026

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
Published on: April 15, 2021
A wide-necked extracranial internal carotid artery saccular aneurysm with ipsilateral proximal compression
ChunXiang Jin1, ZhenZhen Hu2, Yu He1
1Department of Ultrasound, The Third Hospital of JiLin University, 126 XianTai street, 130033, ChangChun, China.
Abstract:
Extracranial internal carotid artery aneurysms (EICAA) are rare and can elicit various neurologic symptoms. Here, we present a case of a saccular EICAA compressing its proximal parent internal carotid artery (ICA). Ultrasonography demonstrated the proximal ICA stenosis and the "tardus-parvus" Doppler waveform downstream. The patient underwent aneurysmectomy and graft interposition. The histologic analysis highly supported an atypical fibromuscular dysplasia. Although this patient only showed a neck mass, the reduced ipsilateral cerebral blood supply was a potential cause for neurologic symptoms. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 45:116-120, 2017.
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