磁共振血管造影诊断右脑后动脉开窗合并双侧小脑上动脉重复。

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2025-04-24 DOI:10.1007/s00276-025-03642-8

Akira Uchino, Misako Minote

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引用次数: 0

摘要

目的：报告1例右侧大脑后动脉开窗合并双侧小脑上动脉重复。方法：一名65岁女性脑膜炎患者采用3-Tesla扫描仪行颅脑磁共振成像（MRI）和磁共振血管造影（MRA）检查。MRA使用标准的三维飞行时间技术进行。结果：MRI在液体衰减反转恢复（FLAIR）序列上显示双侧枕顶区沟状高信号，提示脑膜炎。MRA未见病理病变；然而，右侧PCA在P1-P2交界处的开窗和双侧sca的重复被偶然观察到。结论：通过磁共振成像，我们诊断了第一例右侧PCA开窗合并双侧SCA重复的病例。尽管其临床意义有限，但可能存在误解或与病理状况（如动脉瘤或夹层）诊断混淆的风险。因此，在MRA解释过程中准确识别这些动脉变异是至关重要的。仔细观察MRA图像，以及创建部分体积渲染图像，对于诊断罕见的动脉变异是有用和重要的。

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Right posterior cerebral artery fenestration coexisting with bilateral superior cerebellar artery duplications diagnosed by magnetic resonance angiography.

Purpose: To describe a case of right posterior cerebral artery (PCA) fenestration coexisting with bilateral superior cerebellar artery (SCA) duplication.

Methods: A 65-year-old woman with meningitis underwent cranial magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) using a 3-Tesla scanner. MRA was performed using a standard 3-dimensional time-of-flight technique.

Results: MRI showed sulcal hyperintensity in the bilateral occipito-parietal regions on a fluid-attenuated inversion recovery (FLAIR) sequence, suggesting meningitis. MRA revealed no pathological lesions; however, fenestration of the right PCA at the P1-P2 junction and duplications of the bilateral SCAs were incidentally observed.

Conclusion: Using MRA, we diagnosed the first case of right PCA fenestration coexisting with bilateral SCA duplication. Although its clinical significance is limited, there may be a risk of misinterpretation or diagnostic confusion with pathological conditions such as aneurysms or dissections. Therefore, accurate identification of these arterial variations during MRA interpretation is essential. Careful observation of MRA images, along with the creation of partial volume-rendering images, is useful and important for diagnosing rare arterial variations.

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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.