Study of Variantions of Posterior Cerebral Circulation and its Clinical structural Relevance : Cadaveric study

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Study of Variantions of Posterior Cerebral Circulation and its Clinical structural Relevance : Cadaveric study

Journal Title: Applied Physiology and Anatomy Digest - Year 2018, Vol 3, Issue 2

Abstract

Introduction: Cerebrovascular diseases such as stroke, aneurysms and arterio-venous malformations are very much prevalent in our country. Circle of Willis, as an anastomotic polygon at the base of the brain forms an important collateral network to maintain adequate cerebral perfusion. Material and methods: The present work was carried out in the department of anatomy for on e year duration. It included 30 human brain dissection with 15 as males and 15 as females) irrespective of the cause of death. Brains were obtained from cadavers donated to the Dissection hall of the Department of Anatomy and we collected observational information during routine dissection of medical students in standard form. Circle of Willis and its branches were completely cleared and exposed. Their formative pattern was observed. Results : Out of the 30 specimens examined, 20 circles showed bilateral Adult type PCA in which Rt and Lt PCA were of normal measurement and diameter of PCA was more than PCoA. Similarly 2 circles showed bilateral Foetal type PCA in which PCoA arteries of right and leі side were normal but diameter of PCoA was more than PCA. 15 circles showed bilateral Transitional type PCA in which diameter of PCA and PCoA were equal. Only one specimen showed adult plus transitional type PCA, Right side showed transitional Type PCA and leі side showed Adult type PCA. Conclusion: These variations can cause complications if thrombotic material present in atherosclerotic plaques of ICA gets

Authors and Affiliations

Abdul Waheed Ansari

Keywords

Cerebral Circulation

EP ID EP552822
DOI -
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