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Case report: absence of the right piriformis muscle in a woman
We report a very rare case of a unilaterally absent piriformis muscle in a 60 year old woman. Accompanying variations comprised a common gluteal artery (instead of two distinct superior and inferior gluteal arteries), and an absent gemellus inferior muscle. The contralateral left side showed a norma...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Paris
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6570691/ https://www.ncbi.nlm.nih.gov/pubmed/30758526 http://dx.doi.org/10.1007/s00276-018-02176-6 |
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author | Brenner, Erich Tripoli, Massimiliano Scavo, Elia Cordova, Adriana |
author_facet | Brenner, Erich Tripoli, Massimiliano Scavo, Elia Cordova, Adriana |
author_sort | Brenner, Erich |
collection | PubMed |
description | We report a very rare case of a unilaterally absent piriformis muscle in a 60 year old woman. Accompanying variations comprised a common gluteal artery (instead of two distinct superior and inferior gluteal arteries), and an absent gemellus inferior muscle. The contralateral left side showed a normally developed piriformis muscle. In hominoids, the piriformis is constant, but is regularly missing in several other vertebrates. The piriformis muscle is an anatomical landmark for ultrasound investigations and ultrasound-guided interventions in the deep gluteal region such as a superior gluteal nerve block or even a sacral plexus block, also for any surgical approach such as total hip arthroplasty. A missing piriformis muscle therefore affects the orientation in the deep gluteal region and therefore the identification of the targeted structures. |
format | Online Article Text |
id | pubmed-6570691 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer Paris |
record_format | MEDLINE/PubMed |
spelling | pubmed-65706912019-07-01 Case report: absence of the right piriformis muscle in a woman Brenner, Erich Tripoli, Massimiliano Scavo, Elia Cordova, Adriana Surg Radiol Anat Anatomic Variations We report a very rare case of a unilaterally absent piriformis muscle in a 60 year old woman. Accompanying variations comprised a common gluteal artery (instead of two distinct superior and inferior gluteal arteries), and an absent gemellus inferior muscle. The contralateral left side showed a normally developed piriformis muscle. In hominoids, the piriformis is constant, but is regularly missing in several other vertebrates. The piriformis muscle is an anatomical landmark for ultrasound investigations and ultrasound-guided interventions in the deep gluteal region such as a superior gluteal nerve block or even a sacral plexus block, also for any surgical approach such as total hip arthroplasty. A missing piriformis muscle therefore affects the orientation in the deep gluteal region and therefore the identification of the targeted structures. Springer Paris 2019-02-13 2019 /pmc/articles/PMC6570691/ /pubmed/30758526 http://dx.doi.org/10.1007/s00276-018-02176-6 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Anatomic Variations Brenner, Erich Tripoli, Massimiliano Scavo, Elia Cordova, Adriana Case report: absence of the right piriformis muscle in a woman |
title | Case report: absence of the right piriformis muscle in a woman |
title_full | Case report: absence of the right piriformis muscle in a woman |
title_fullStr | Case report: absence of the right piriformis muscle in a woman |
title_full_unstemmed | Case report: absence of the right piriformis muscle in a woman |
title_short | Case report: absence of the right piriformis muscle in a woman |
title_sort | case report: absence of the right piriformis muscle in a woman |
topic | Anatomic Variations |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6570691/ https://www.ncbi.nlm.nih.gov/pubmed/30758526 http://dx.doi.org/10.1007/s00276-018-02176-6 |
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