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Vascularization of the uncus - Anatomical study and clinical implications
Gustavo Rassier Isolan1, Antônio Carlos Huf Marrone2, Luiz Carlos Porcellos Marrone2
1Department of Neurosurgery, Center for Advanced Neurology and Neurosurgery, Porto Alegre, Rio Grande do Sul, Brazil.
Surgical Neurology International
|September 13, 2021
Summary
The uncus, a part of the temporal lobe, receives arterial supply primarily from the anterior choroidal artery (AChA) and middle cerebral artery (MCA). This detailed vascular mapping aids in neurosurgical treatments.
Area of Science:
- Neuroanatomy
- Vascular Neurology
- Cerebral Blood Flow
Background:
- The uncus' arterial supply is crucial for understanding temporal lobe function and pathology.
- Detailed anatomical knowledge is vital for neurosurgical interventions in the mesial temporal region.
Purpose of the Study:
- To describe and quantify the arterial supply to the uncus.
- To identify the specific arteries and their branches supplying the anteromedial temporal cortex.
Main Methods:
- Analysis of 150 human cerebral hemispheres.
- Identification of main afferent arteries supplying the anteromedial temporal cortex and uncus.
- Determination of vascular territories via cortical and perforating branches.
Main Results:
- The uncus received 1104 arteries from anterior choroidal artery (AChA), internal carotid artery (ICA), middle cerebral artery (MCA), and posterior cerebral artery (PCA).
- AChA (38%) and MCA (32%) provided the largest contributions, with an average of 7.36 arteries per uncus.
- Cortical anastomoses were observed, predominantly between MCA and PCA (27 cases).
Conclusions:
- A comprehensive description and quantification of uncus vascularization, including variations, were established.
- This updated vascular data is essential for improving neurosurgical treatment strategies for mesial temporal conditions.
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