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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...

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Detalles Bibliográficos
Autores principales: Brenner, Erich, Tripoli, Massimiliano, Scavo, Elia, Cordova, Adriana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Paris 2019
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.
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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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