Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans

The histology of the middle cerebral artery (MCA) in Nigerian Africans has not been previously studied. One hundred MCAs obtained at autopsy from fifty adult Nigerians were studied. The vessels were processed and stained with Ehrlich's haematoxylin and eosin, elastic Van Gieson and Masson'...

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Autores principales:	Idowu,O. E, Shokunbi,M.T, Malomo,A. O, Akang,E. E. U
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2008
Materias:	Anomalies Histology Middle cerebral artery
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400038
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spelling	oai:scielo:S0717-950220080004000382009-05-25Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian AfricansIdowu,O. EShokunbi,M.TMalomo,A. OAkang,E. E. U Anomalies Histology Middle cerebral artery The histology of the middle cerebral artery (MCA) in Nigerian Africans has not been previously studied. One hundred MCAs obtained at autopsy from fifty adult Nigerians were studied. The vessels were processed and stained with Ehrlich's haematoxylin and eosin, elastic Van Gieson and Masson's trichrome stains. Early branches were given off before the perforators in two middle cerebral arteries, and there was one accessory MCA, making an incidence of anomalies of 3%. No aneurysm was observed in any of the cases. The internal elastic laminas were well developed but the external elastic laminas of the vessels were poorly developed. Cióse to the bif urcations the túnica media tapered gradually and at the bif urcations, the túnica media was completely deficient being replaced by the túnica adventitia (Forbus raphé). The túnica adventitia was thicker at the bifurcations (0.21mm) compared to other sites of the vessel. The average thickness of the MCA túnica media atits origin was 0.12mm while thatof the túnica adventitia was O.lOmm. Theseresults are similar to what has been described in the literature for Caucasians. It buttresses the assertion that anatomical anomalies of the MCA are rare. The seemingly low frequency of MCA aneurysms in Nigerian Africans is not due to its anomalies or histology.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.26 n.4 20082008-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400038en10.4067/S0717-95022008000400038
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anomalies Histology Middle cerebral artery
spellingShingle	Anomalies Histology Middle cerebral artery Idowu,O. E Shokunbi,M.T Malomo,A. O Akang,E. E. U Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
description	The histology of the middle cerebral artery (MCA) in Nigerian Africans has not been previously studied. One hundred MCAs obtained at autopsy from fifty adult Nigerians were studied. The vessels were processed and stained with Ehrlich's haematoxylin and eosin, elastic Van Gieson and Masson's trichrome stains. Early branches were given off before the perforators in two middle cerebral arteries, and there was one accessory MCA, making an incidence of anomalies of 3%. No aneurysm was observed in any of the cases. The internal elastic laminas were well developed but the external elastic laminas of the vessels were poorly developed. Cióse to the bif urcations the túnica media tapered gradually and at the bif urcations, the túnica media was completely deficient being replaced by the túnica adventitia (Forbus raphé). The túnica adventitia was thicker at the bifurcations (0.21mm) compared to other sites of the vessel. The average thickness of the MCA túnica media atits origin was 0.12mm while thatof the túnica adventitia was O.lOmm. Theseresults are similar to what has been described in the literature for Caucasians. It buttresses the assertion that anatomical anomalies of the MCA are rare. The seemingly low frequency of MCA aneurysms in Nigerian Africans is not due to its anomalies or histology.
author	Idowu,O. E Shokunbi,M.T Malomo,A. O Akang,E. E. U
author_facet	Idowu,O. E Shokunbi,M.T Malomo,A. O Akang,E. E. U
author_sort	Idowu,O. E
title	Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
title_short	Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
title_full	Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
title_fullStr	Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
title_full_unstemmed	Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans
title_sort	anomalies, aneurysm and histology of the middle cerebral artery in nigerian africans
publisher	Sociedad Chilena de Anatomía
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400038
work_keys_str_mv	AT idowuoe anomaliesaneurysmandhistologyofthemiddlecerebralarteryinnigerianafricans AT shokunbimt anomaliesaneurysmandhistologyofthemiddlecerebralarteryinnigerianafricans AT malomoao anomaliesaneurysmandhistologyofthemiddlecerebralarteryinnigerianafricans AT akangeeu anomaliesaneurysmandhistologyofthemiddlecerebralarteryinnigerianafricans
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Anomalies, Aneurysm and Histology of the Middle Cerebral Artery in Nigerian Africans

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