Azygos anterior cerebral artery shield masquerading as an aneurysm

被引:0
|
作者
Andreev, Alexander [1 ]
Vranic, Justin E. [2 ]
Doron, Omer [2 ]
Regenhardt, Robert W. [2 ]
Patel, Aman B. [2 ]
机构
[1] Beth Israel Deaconess Med Ctr, Dept Neurol, 330 Brookline Ave, Boston, MA 02215 USA
[2] Massachusetts Gen Hosp, Dept Neurosurg, Boston, MA USA
来源
NEURORADIOLOGY JOURNAL | 2024年 / 37卷 / 02期
基金
美国国家卫生研究院;
关键词
Azygos anterior cerebral artery; anterior cerebral artery aneurysm; anterior cerebral artery; ANGIOGRAPHY;
D O I
10.1177/19714009231173106
中图分类号
R445 [影像诊断学];
学科分类号
100207 ;
摘要
Here, we describe a case of a woman suspected to have an anterior cerebral artery (ACA) aneurysm that was ultimately found to have an azygous ACA shield. This benign entity highlights the importance of thorough investigation with cerebral digital subtraction angiography (DSA). This 73-year-old female initially presented with dyspnea and dizziness. CT angiogram of the head suggested an incidental 5 mm ACA aneurysm. Subsequent DSA demonstrated a Type I azygos ACA supplied by the left A1 segment. Also noted was a focal dilatation of the azygos trunk as it gave rise to the bilateral pericallosal and callosomarginal arteries. Three-dimensional visualization demonstrated a benign dilatation secondary to the four vessels branching; no aneurysm was noted. Incidence of aneurysms at the distal dividing point of an azygos ACA ranges from 13% to 71%. However, careful anatomical examination is imperative as findings may be a benign dilatation for which case intervention is not indicated.
引用
收藏
页码:244 / 246
页数:3
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