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An unusual occurrence of a four-headed psoas major: a case report
Affiliations- Department of Anatomical Dissection and Donation, Medical University of Lodz, Łódź, Poland
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Abstract
Background: While many structures within the human body demonstrate anatomical variations, this is not typically the case for the iliopsoas muscle complex. However, the present paper describes a case of an anomalous psoas major composed of four different muscular heads in a 78-year-old male cadaver.
Materials and methods: During a routine dissection of the right posterior abdominal wall, an unusual psoas major was observed, measured and photographed.
Results: The psoas major was found to possess four muscular heads, otherwise the anatomy of the wall was normal.
Conclusions: The presence of so many heads could interfere with the functions of the psoas major muscle. Therefore this anatomical variation merits further study.
Abstract
Background: While many structures within the human body demonstrate anatomical variations, this is not typically the case for the iliopsoas muscle complex. However, the present paper describes a case of an anomalous psoas major composed of four different muscular heads in a 78-year-old male cadaver.
Materials and methods: During a routine dissection of the right posterior abdominal wall, an unusual psoas major was observed, measured and photographed.
Results: The psoas major was found to possess four muscular heads, otherwise the anatomy of the wall was normal.
Conclusions: The presence of so many heads could interfere with the functions of the psoas major muscle. Therefore this anatomical variation merits further study.
Keywords
accessory heads, iliopsoas muscle complex, morphological variability, psoas major
About this articleTitle
An unusual occurrence of a four-headed psoas major: a case report
Journal
Issue
Article type
Case report
Published online
2024-04-25
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Keywords
accessory heads
iliopsoas muscle complex
morphological variability
psoas major
Authors
Marta Pośnik
Nicol Zielinska
Konrad Kurtys
Krzysztof Koptas
Łukasz Olewnik
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