Persistent trigeminal artery-superior cerebellar artery segmental fusion diagnosed using magnetic resonance angiography.

IF 1.2 4区医学 Q3 ANATOMY & MORPHOLOGY Surgical and Radiologic Anatomy Pub Date : 2023-08-01 Epub Date: 2023-06-20 DOI:10.1007/s00276-023-03182-z

Shu Suzuki, Akira Uchino, Akira Kunimatsu

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Abstract

Purpose: To describe a case of persistent trigeminal artery (PTA)-superior cerebellar artery (SCA) segmental fusion incidentally diagnosed on magnetic resonance (MR) angiography.

Case report: A 53-year-old woman with a history of facial pain underwent cranial MR imaging and MR angiography. MR angiography showed a left lateral-type PTA arising from the precavernous portion of the left internal carotid artery (ICA). PTA branched into the left distal SCA and showed segmental fusion with the proximal SCA at the distal part of the PTA. We also diagnosed an unruptured cerebral aneurysm at the junction between the left ICA and PTA.

Discussion: PTA is the most frequent type of carotid-vertebrobasilar anastomosis. The reported prevalence rate is 0.2% by angiography and 0.34% by MR angiography. There are two types of PTA-lateral (usual) and medial (intrasellar). SCA arising from the lateral-type PTA has rarely been reported. Further, a PTA from which the distal SCA branches and segmentally fuses with the proximal SCA at the distal part of the PTA has not been reported.

Conclusion: Using MR angiography, we diagnosed a rare type of PTA that fused segmentally with SCA. No similar case has been reported in relevant English-language literature.

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磁共振血管造影术诊断持续性三叉动脉-小脑上动脉节段融合。

目的：描述一例在磁共振（MR）血管造影术中偶然诊断为持续性三叉动脉（PTA）-小脑上动脉（SCA）节段融合的病例。病例报告：一名有面部疼痛史的53岁女性接受了颅骨MR成像和MR血管造影术。磁共振血管造影术显示左侧型PTA来自左颈内动脉（ICA）的血管前部分。PTA分支进入左远端SCA，并在PTA的远端与近端SCA显示节段融合。我们还诊断了左侧颈内动脉和PTA交界处未破裂的脑动脉瘤。讨论：PTA是最常见的颈动脉椎基底动脉吻合类型。血管造影报告的患病率为0.2%，MR血管造影报告的发病率为0.34%。PTA有两种类型：外侧型（常见）和内侧型（鞍内型）。由横向型PTA引起的SCA很少报道。此外，远端SCA分支并与PTA远端部分的近端SCA分段融合的PTA尚未报道。结论：利用磁共振血管造影术，我们诊断出一种罕见的PTA与SCA节段融合。在相关的英语文献中没有类似的病例报告。

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 ANATOMY & MORPHOLOGY-RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

CiteScore

2.70

自引率

14.30%

发文量

183

审稿时长

4-8 weeks

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.