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首页> 外文期刊>Auris, nasus, larynx >Aberrant internal carotid artery as a cause of objective pulsatile tinnitus.
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Aberrant internal carotid artery as a cause of objective pulsatile tinnitus.

机译：颈内动脉异常导致客观搏动性耳鸣。

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摘要

An aberrant internal carotid artery (ICA) is a rare vascular anomaly and causes to objective pulsatile tinnitus and retrotympanic mass. In the past, it was often diagnosed during ear surgery or biopsy, which may lead to massive bleeding. We present a case of 37-year-old woman complaining of pulsatile tinnitus. The tinnitus was objectively audible at the right ear through an otoscope. Previously, MRA plays a pivotal role in the evaluation of the aberrant ICA. But in this case, the resolution of magnetic resonance angiography (MRA) was not enough to portray the course of the ICA, because dephasing of the spins due to turbulence may cause loss of the signal intensity on MRA. Computed tomography (CT) of the temporal bone revealed aberrant internal carotid artery passing through the middle ear. It is important to diagnose approximately this anomaly using with combination of high-resolution CT, MRI, and MRA.
机译：颈内动脉异常（ICA）是一种罕见的血管异常，可导致客观搏动性耳鸣和鼓膜后重量。过去，通常是在耳部手术或活检期间被诊断出，可能导致大量出血。我们介绍了一例抱怨搏动性耳鸣的37岁妇女。耳镜可通过耳镜客观地听到耳鸣。以前，MRA在异常ICA的评估中起着关键作用。但是在这种情况下，磁共振血管造影（MRA）的分辨率不足以描绘ICA的过程，因为湍流引起的自旋相移可能会导致MRA信号强度的损失。颞骨的计算机断层扫描（CT）显示异常的颈内动脉穿过中耳。重要的是，结合使用高分辨率CT，MRI和MRA来诊断这种异常。

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