Journals / İstanbul Kanuni Sultan Süleyman Tıp Dergisi / 2020 / Cilt: 12 - Sayı: 2

A Cadaveric Study on Topographic Anatomy of Parahippocampal Gyrus and Uncus

Parahipokampal Girus ve Unkusun Topoğrafik ID Anatomisi Üzerine Bir Kadavra Çalışması

Pages
182–187
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

We consider that the knowledge gained from the results of this study can guide for more effective and successful neurosurgical approaches and can contribute for better understanding the region.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The parahippocampal gyrus and the uncus located in the mediobasal region of the temporal lobe are related to the limbic system.
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Key Findings & Data:Method: The topographic anatomy of the parahippocampal gyrus and the uncus was studied in seventeen formalin-fixed adult human brain specimens (34 hemispheres).
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Conclusion & Impact:We consider that the knowledge gained from the results of this study can guide for more effective and successful neurosurgical approaches and can contribute for better understanding the region.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The parahippocampal gyrus and the uncus located in the mediobasal region of the temporal lobe are related to the limbic system. In this anatomical study, we aimed to provide a contribution to surgical success by describing the parahippocampal gyrus and the uncus with the definitions of the related surrounding structures. Method: The topographic anatomy of the parahippocampal gyrus and the uncus was studied in seventeen formalin-fixed adult human brain specimens (34 hemispheres). Klingler’s fiber dissection technique was used in eight brains. Histological examination of the parahippocampal gyrus and the uncus with surroundings were evaluated in two brains. Results: The parahippocampal gyrus has an anterior segment that deviates medially to form the uncus and a posterior segment that continues superiorly to the cingulate gyrus through the isthmus, and inferiorly as the lingual gyrus. A thick white matter bundle connecting the medial frontal and parietal areas with the mediobasal temporal region is located in the cingulate gyrus and can be seen under the radiation of the cingulum that is revealed when the cortex of the parahippocampal gyrus is removed. The parahippocampal gyrus is made up of dysgranular, paralimbic type association cortex. The uncus has an allocortical structure that is made up of granular cell type. Conclusion: A detailed microsurgical anatomy of the parahippocampal gyrus and the uncus is described in this study. We consider that the knowledge gained from the results of this study can guide for more effective and successful neurosurgical approaches and can contribute for better understanding the region.

Özet

Amaç: Parahipokampal girus ve unkus temporal lobun mediobazal bölgesinde bulunanlimbik sistemle ilişkili anatomik yapılardır. Bu çalışmada temporal lobun mediobazalbölgesinde yer alan parahipokampal girus ve unkusu çevresindeki komşu yapılarlaberaber tanımlayarak cerrahi başarıya katkı sağlamayı amaçladık.Yöntem: Taze otopsilerden alınan 17 adet formalin ile fikse edilmiş insan beyninde (34adet hemisfer) parahipokampal girus ve unkusun topoğrafik anatomisi çalışıldı. Sekizadet beyinde Klingler’in fiber diseksiyon tekniği kullanıldı. İki adet beyinde parahipokampalgirus ve unkusun çevre yapılarıyla beraber histolojik araştırması değerlendirildi.Bulgular: Parahipokampal girusun anterior segmentinin medialde arkaya doğru kıvrımyaparak uzanmasıyla unkus oluşur, arka segmenti ise yukarıya doğru istmus boyuncasingulat girusa, aşağıda lingual girusa uzanır. Parahipokampal girusun korteksi kaldırıldığındasingulum radyasyonunun altında medial frontal ve parietal alanlar ile mediobazaltemporal bölgeyi bağlayan kalın bir beyaz cevher demeti görülmektedir.Parahipokampal girus, disgranüler paralimbik tip asosiasyon korteksinden oluşmaktadır.Allokortikal yapıda olan unkus ise agranüler hücre tipindedir.Sonuç: Bu çalışmada parahipokampal girusun ve unkusun detaylı mikroşirürjikal anatomisitanımlandı. Bu araştırmanın sonucunda elde edilen bulguların, daha etkin vebaşarılı nöroşirürjikal girişimlere rehberlik yapacağı ve aynı zamanda bu bölgenindaha iyi anlaşılabilmesine katkı sağlayacağı kanaatindeyiz.

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Cite This Article

BİLGİÇ, B., OVALIOGLU, A. Ö., OVALIOGLU, T. C. (2022). A Cadaveric Study on Topographic Anatomy of Parahippocampal Gyrus and Uncus. İstanbul Kanuni Sultan Süleyman Tıp Dergisi, Cilt: 12 - Sayı: 2, 182–187. https://ajindex.com/articles/550953

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