Transcallosal and Pericallosal Courses of the Anterior Cerebral Artery

Mincă, Dragoş Ionuţ; Rusu, Mugurel Constantin; Rădoi, Petrinel Mugurel; Hostiuc, Sorin; Toader, Corneliu

doi:10.3390/medicina58101365

Cited by 3 publications

(4 citation statements)

References 30 publications

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Section: Discussionmentioning

confidence: 99%

“…Rare anatomic variations in the cerebral anterior circulation can be found by use of modern imaging techniques, including the bihemispheric ACA 14,15 . Bihemispheric ACAs were found in 6/45 cases 14 . A bihemispheric ACA was defined as a combination of one dominant A2 segment supplying most of the cortical territory of both ACAs 14 .…”

Section: Discussionmentioning

confidence: 99%

“…14 A bihemispheric ACA was defined as a combination of one dominant A2 segment supplying most of the cortical territory of both ACAs. 14 However, in the case presented here, one ACA was completely supplying both ACAs territories, due to the contralateral agenesis/aplasia of ACA. Unilateral A1 aplasia, such as was encountered here, is frequently observed.…”

Section: Discussionmentioning

confidence: 99%

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Bihemispheric Right Anterior Cerebral Artery, Fenestrated Origin of the Left Pericallosal Artery, Fenestrated Basilar Artery, Double Right Posterior Cerebral Artery

Rusu

Lazăr

Vrapciu

2023

Journal of Craniofacial Surgery

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Anatomical variations of the cerebral vasculature are frequently encountered. The archived magnetic resonance angiogram of a 62-year-old male patient was studied anatomically on planar slices and 3-dimensional volume renderings. Numerous anatomical variants were found in that single case. In the vertebrobasilar system were found: the proximal basilar artery fenestration, with a unilateral origin from that fenestration of an anterior inferior cerebellar artery, and the unilateral origin of the superior cerebellar artery from the P1 segment of the main posterior cerebral artery (PCA). There were also unilateral variants of the right internal carotid artery (ICA): a subvariant of an accessory PCA leaving the ICA as a hyperplastic anterior choroidal artery and united to the main PCA by a short communicating branch, distinctive of the posterior communicating artery in that side (unilateral double PCA); a right bihemispheric anterior cerebral artery (ACA) but with complete agenesis of the contralateral A1 ACA segment; from the right ACA continued an anatomically normal ipsilateral A2 segment and a short transverse contralateral A2 that, in turn, sent off long pericallosal and callosomarginal arteries; and fenestrated origin of the left pericallosal artery. Therefore, an arterial variant in one of the main cerebral circulations could not exclude anatomical variants in the other cerebral circulatory beds.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Bihemispheric Right Anterior Cerebral Artery, Fenestrated Origin of the Left Pericallosal Artery, Fenestrated Basilar Artery, Double Right Posterior Cerebral Artery

Rusu

Lazăr

Vrapciu

2023

Journal of Craniofacial Surgery

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“…There were no exclusion criteria and all the studies that were related to human anatomical variations of the EJV were assessed. Moreover, we used archived computed tomography angiograms from previous studies [ 3 , 4 , 5 ] as well as dissections to support this review.…”

Section: Introductionmentioning

confidence: 99%

Anatomical Variations of the External Jugular Vein: A Pictorial and Critical Review

et al. 2023

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(1) Background: The external jugular vein (EJV) descends on the sternocleidomastoid muscle to drain deep into the subclavian vein. Anatomical variations of the EJV are relevant for identification of the greater auricular nerve, flap design and preparation, or EJV cannulation. (2) Methods: Different publications were comprehensively reviewed. Dissections and three-dimensional volume renderings of peculiar cases were used to sample the review. (3) Results: Different anatomical possibilities of the EJV were critically reviewed and documented: fenestrations and double fenestrations, true or false duplications, triplication, absence, aberrant origin or course, or bifurcation. Tributaries of the EJV, such as the facial and posterior external jugular veins, are discussed. The internal jugular vein termination of the EJV is also presented. (4) Conclusions: Care should be taken when different morphological features of the EJV are encountered or reported.

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The Anatomical Variation of the Distal Anterior Cerebral Artery: An Angiographic Study in a Greek Population Sample

Chrissicopoulos,

Mavrovounis,

Piagkou

et al. 2024

Cureus

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Objective The current retrospective angiographic study establishes the rates of variants in the distal anterior cerebral artery (DACA) in a sample of the Greek population. Methods Data were collected from 456 patients who underwent two-dimensional (2D) or three-dimensional (3D) digital subtraction angiography (DSA) of the carotid and vertebral arteries bilaterally. The study focused on patients with good visualization of the anterior and posterior circulations and employed magnetic resonance (MR) or computed tomography (CT) angiography for 3D reconstruction. The anterior cerebral artery (ACA) was classified into one of its two basic configurations, that is, with or without the callosomarginal artery (CMA). The bihemispheric, median, and azygos ACA patterns were also identified. Results The majority (373/456, 81.8%) exhibited a typical DACA pattern. The bihemispheric, median, and azygos patterns were identified in 66/456 (14.5%), 10/456 (2.2%), and 7/456 (1.5%), respectively. The CMA was present in 824/912 (90.4%) of the hemispheres, with a trend toward male predominance for bilateral presence (males: 167/192, 86.98%; females: 210/264, 79.55%; p = 0.05). In particular, the CMA was present significantly more frequently (p = 0.002) in the left hemispheres of male patients. Gender differences in CMA presence persisted in the analysis of the patients with a typical DACA pattern. Conclusion This study provides insights into the variations of the DACA in the Greek population. The observed gender differences in CMA rates suggest potential morphological variations in cerebral vasculature between males and females and contribute to a better understanding of vascular anatomy for clinical and surgical applications.

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Transcallosal and Pericallosal Courses of the Anterior Cerebral Artery

Cited by 3 publications

References 30 publications

Bihemispheric Right Anterior Cerebral Artery, Fenestrated Origin of the Left Pericallosal Artery, Fenestrated Basilar Artery, Double Right Posterior Cerebral Artery

Bihemispheric Right Anterior Cerebral Artery, Fenestrated Origin of the Left Pericallosal Artery, Fenestrated Basilar Artery, Double Right Posterior Cerebral Artery

Anatomical Variations of the External Jugular Vein: A Pictorial and Critical Review

The Anatomical Variation of the Distal Anterior Cerebral Artery: An Angiographic Study in a Greek Population Sample

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