Summary
During routine radiological examination of a 72 year-old woman a soft-tissue shadow in the left posterior triangle of the neck was observed. Three-dimensional reconstruction of this structure suggested that it might be a muscular variant: a levator claviculae muscle. In our case it took origin from the upper part of the cervical column and was inserted into the lateral third of the clavicle. With this example as a background, the general significance of anatomical muscular variants for modern imaging techniques is discussed.
Résumé
Lors d'un examen radiologique de routine (TDM, IRM) pratiqué chez une femme de 72 ans, une image tissulaire molle fut mise en évidence dans le triangle cervical postérieur gauche. La reconstruction tridimensionnelle de cette structure a suggéré qu'il pouvait s'agir d'une variante musculaire, en l'occurrence d'un muscle élévateur de la clavicule. Dans notre cas, l'origine musculaire était située au niveau de la colonne cervicale supérieure et son insertion distale sur le tiers latéral de la clavicule. Cette exemple nous amène à rappeler l'aspect général des variantes anatomiques musculaires dans le contexte des techniques d'imagerie moderne.
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Fasel, J., Gailloud, P. & Terrier, F. Three-dimensional reconstruction of a levator claviculae muscle. Surg Radiol Anat 16, 303–305 (1994). https://doi.org/10.1007/BF01627686
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DOI: https://doi.org/10.1007/BF01627686