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- Title
Hippocampal vascularization: Proposal for a new classification.
- Authors
Rassier Isolan, Gustavo; Antonio Stefani, Marco; Luis Schneider, Felipe; Alves Claudino, Humberto; Yang Han Yu; Goulart Choi, Gil; Mota Telles, Joao Paulo; Nunes Rabelo, Nícollas; Gadelha Figueiredo, Eberval
- Abstract
Background: Anatomy of the hippocampal arterial supply is key to successful surgeries in this area. The goal of the current study is to present the results we obtained from our microsurgical dissections of the temporal lobe and to propose a new classification for the hippocampal arteries (HAs). Methods: Fifty-six brain hemispheres were analyzed. All dissections in this study were made using 3-40× at the surgical microscope. Results: The hippocampal arterial vasculature can be divided into six groups, according to their frequencies: Group A: mixed arterial vasculature originating from the anterior choroidal artery anterior choroidal artery, posterior cerebral artery (PCA), anterior infratemporal artery (AIA), and splenic artery (SA). Group B: Main origin at the temporal branches - main inferotemporal trunk, middle inferotemporal artery, posterior inferotemporal artery, AIA, or main branch of PCA. Group C: AIA as the main branch of the hippocampus. Group D: HAs originating from the main branch of PCA. Group E: A single hippocampal artery with the origin at the main branch of PCA. This single artery covered all of the structure and is named Ushimura's artery. Group F: The hippocampal vessels arose exclusively from the parieto-occipital artery, calcarine artery (CA), and the SA. Conclusion: This study proposes a new classification for the hippocampal vascularization, according to the origin of HAs. One of the groups has not yet been described in the literature - in which the HAs arise from the parietooccipital artery, SA, and CA.
- Subjects
HIPPOCAMPUS (Brain); POSTERIOR cerebral artery; SPLENIC artery; CEREBRAL hemispheres; TEMPORAL lobe
- Publication
Surgical Neurology International, 2020, Vol 12, p1
- ISSN
2229-5097
- Publication type
Article
- DOI
10.25259/SNI_708_2020