Combined duplicate origin and early bifurcated middle cerebral artery diagnosed by magnetic resonance angiography.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2024-08-01 Epub Date: 2024-06-04 DOI:10.1007/s00276-024-03403-z

Akira Uchino, Satoshi Kobayashi

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引用次数: 0

Abstract

Purpose: To describe a case of combined duplicate origin and early bifurcated middle cerebral artery (MCA) incidentally diagnosed using magnetic resonance (MR) angiography.

Methods: A 51-year-old woman with an unruptured left MCA aneurysm underwent cranial MR angiography with a 3-Tesla scanner for presurgical evaluation. MR angiography was performed using a standard 3-dimensional time-of-flight technique.

Results: An unruptured left MCA aneurysm at the M1-M2 junction was identified. The maximum aneurysm diameter was 9 mm. Two almost equally sized right MCAs arose from the terminal segment of the right internal carotid artery. These two channels soon anastomosed, and the temporal branch arose from the inferior channel. The aneurysm was successfully treated with coil embolization.

Conclusion: We herein report a case of a combined duplicate origin and early bifurcated MCA. This variation can also be regarded as anastomosis between the main MCA and the duplicated MCA. This variation has been previously reported as segmental duplication of the MCA. This is the third case of this rare MCA variation reported in the relevant English-language literature. The term "segmental duplication" may be confused with duplicate origin of the MCA, in which only one artery is located distal to the fusion.

Abstract Image

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通过磁共振血管造影术诊断的大脑中动脉重复起源和早期分叉。

目的：描述一例利用磁共振（MR）血管造影偶然诊断出的合并重复起源和早期分叉大脑中动脉（MCA）的病例：一名患有未破裂左侧 MCA 动脉瘤的 51 岁女性接受了 3-Tesla 扫描仪头颅磁共振血管造影术，以进行手术前评估。磁共振血管造影采用标准的三维飞行时间技术：结果：在M1-M2交界处发现了一个未破裂的左侧MCA动脉瘤。动脉瘤的最大直径为 9 毫米。两条大小几乎相等的右侧 MCA 从右侧颈内动脉的末段生成。这两条通道很快吻合，而颞支则来自于下部通道。动脉瘤通过线圈栓塞治疗获得成功：结论：我们在此报告了一例合并重复起源和早期分叉的 MCA 病例。结论：我们在此报告了一例合并重复起源和早期分叉的 MCA 病例，这种变异也可被视为主 MCA 和重复 MCA 之间的吻合。这种变异以前曾被报道为 MCA 的节段性重复。这是相关英文文献中报道的第三例这种罕见的 MCA 变异。节段性重复 "一词可能会与 MCA 的重复起源混淆，后者只有一条动脉位于融合远端。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.