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A morphometric analysis of the circumolivary fiber bundle of the human brainstem

The circumolivary fiber bundle (CFB) is considered to be an anatomical variation, which can be found on the surface of the human medulla oblongata. The macroscopical fiber bundle runs downwards from either the anterior median fissure, the pyramid, or both, around the inferior pole of the olive and t...

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Autores principales: Brendel, Victor A., Schmeisser, Michael J., Schumann, Sven
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709315/
https://www.ncbi.nlm.nih.gov/pubmed/36466780
http://dx.doi.org/10.3389/fnana.2022.990862
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author Brendel, Victor A.
Schmeisser, Michael J.
Schumann, Sven
author_facet Brendel, Victor A.
Schmeisser, Michael J.
Schumann, Sven
author_sort Brendel, Victor A.
collection PubMed
description The circumolivary fiber bundle (CFB) is considered to be an anatomical variation, which can be found on the surface of the human medulla oblongata. The macroscopical fiber bundle runs downwards from either the anterior median fissure, the pyramid, or both, around the inferior pole of the olive and turns upwards to reach the restiform body of the inferior cerebellar peduncle. Multiple fiber systems feed the constitution of the CFB (collateral corticospinal fibers, fibers connecting to the reticular formation, anterior external arcuate fibers). With this examination we provide a systematic analysis of the frequency of occurrence (6.14%), size, and laterality of the CFB. Including all three fiber bundle parts (descending part, genu, and ascending part), the left-sided sizes were increased. Likewise, the appearance of an unilateral left-sided CFB could be detected in more than 60% of our cases. Our morphometrical analysis currently covers the largest sample of investigated brainstem sides (n = 489) so far. This investigation should widen the perspective on how anatomists, neuroradiologists, and neurosurgeons expect the anterolateral surface of the human medulla oblongata.
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spelling pubmed-97093152022-12-01 A morphometric analysis of the circumolivary fiber bundle of the human brainstem Brendel, Victor A. Schmeisser, Michael J. Schumann, Sven Front Neuroanat Neuroscience The circumolivary fiber bundle (CFB) is considered to be an anatomical variation, which can be found on the surface of the human medulla oblongata. The macroscopical fiber bundle runs downwards from either the anterior median fissure, the pyramid, or both, around the inferior pole of the olive and turns upwards to reach the restiform body of the inferior cerebellar peduncle. Multiple fiber systems feed the constitution of the CFB (collateral corticospinal fibers, fibers connecting to the reticular formation, anterior external arcuate fibers). With this examination we provide a systematic analysis of the frequency of occurrence (6.14%), size, and laterality of the CFB. Including all three fiber bundle parts (descending part, genu, and ascending part), the left-sided sizes were increased. Likewise, the appearance of an unilateral left-sided CFB could be detected in more than 60% of our cases. Our morphometrical analysis currently covers the largest sample of investigated brainstem sides (n = 489) so far. This investigation should widen the perspective on how anatomists, neuroradiologists, and neurosurgeons expect the anterolateral surface of the human medulla oblongata. Frontiers Media S.A. 2022-11-16 /pmc/articles/PMC9709315/ /pubmed/36466780 http://dx.doi.org/10.3389/fnana.2022.990862 Text en Copyright © 2022 Brendel, Schmeisser and Schumann. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Brendel, Victor A.
Schmeisser, Michael J.
Schumann, Sven
A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title_full A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title_fullStr A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title_full_unstemmed A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title_short A morphometric analysis of the circumolivary fiber bundle of the human brainstem
title_sort morphometric analysis of the circumolivary fiber bundle of the human brainstem
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709315/
https://www.ncbi.nlm.nih.gov/pubmed/36466780
http://dx.doi.org/10.3389/fnana.2022.990862
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