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Microsurgical anatomy of the subcallosal artery

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Abstract

Background and purpose

The subcallosal artery [SCA, a branch of the anterior communicating artery (ACoA)] is not well described in the literature. However, the memory disorders that can occur after surgical repair of ruptured ACoA aneurysms might be related to infarction of the SCA. The objective of the present study was to perform a thorough anatomical assessment of the SCA.

Methods

The study was carried out over a 6-month period in a University Hospital’s anatomy laboratory, using brains extracted from human cadavers. The brains were injected with colored neoprene latex and dissected to study the SCA’s origin, path, termination, diameter, length, and vascularized territories.

Results

21 cadaveric specimens were studied. The mean ± standard deviation diameter and length of the SCA were 0.83 ± 0.57 mm and 38.14 ± 25.11 mm, respectively. The predominantly vascularized territories were the paraterminal gyrus (100%), the parolfactory gyrus (78.95%), the rostrum (84.21%) and genu (78.95%) of the corpus callosum, the lamina terminalis (78.95%), the anterior commissure (63.16%), the anterior cingulate gyrus (47.37%), and the fornix (26.32%). When the SCA supplied the fornix and the anterior cingulate gyrus, it was significantly longer and broader (p < 0.05).

Conclusion

Anatomic knowledge of the SCA is crucial—especially for the treatment of ACoA aneurysms.

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Authors and Affiliations

  1. Department of Anatomy and Organogenesis, Faculty of Medicine, University of Picardie Jules Verne, 80000, Amiens, France

    Louis Chenin, Aimé Kaoudi, Pascal Foulon, Eric Havet & Johann Peltier

  2. Department of Neurosurgery, Amiens University Hospital, 80000, Amiens, France

    Louis Chenin, Aimé Kaoudi & Johann Peltier

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  1. Louis Chenin
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  2. Aimé Kaoudi
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  3. Pascal Foulon
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  5. Johann Peltier
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Contributions

Protocol/project development: LC, AK, PF, EH, JP. Data collection or management: LC, JP. Data analysis: LC, JP. Manuscript writing: LC.

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Correspondence to Louis Chenin.

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The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.

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Chenin, L., Kaoudi, A., Foulon, P. et al. Microsurgical anatomy of the subcallosal artery. Surg Radiol Anat 41, 1037–1044 (2019). https://doi.org/10.1007/s00276-019-02279-8

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  • DOI: https://doi.org/10.1007/s00276-019-02279-8

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