描述胸骨肌：一种新的变异及修订后的分类。
Describing the sternalis muscle: a new variant and an amended classification.
作者信息
Prall Cristina R, Azzouz Lyna, Connolly Christopher, Gutierrez Marc, Moreno Natalie, Olumolade Oluyemi, Alsup B Kathleen, Fox Glenn M
机构信息
Division of Anatomical Sciences, Department of Surgery, University of Michigan Medical School, 1137 Catherine St., Ann Arbor, MI, 48109, USA.
University of Michigan Medical School, 1137 Catherine St., Ann Arbor, MI, 48109, USA.
出版信息
Surg Radiol Anat. 2019 Feb;41(2):243-245. doi: 10.1007/s00276-018-2119-9. Epub 2018 Oct 23.
PURPOSE
With emphasis on the clinical setting, knowledge of anatomical variation decreases misdiagnoses and surgical complications. We report a previously undocumented variant of sternalis muscle and recommend an augmented classification scheme.
METHODS
Dissection of the anterior thoracic wall on an 83-year-old female cadaver revealed bilateral sternalis muscles. The Snosek et al. classification system was referenced to describe the variant types.
RESULTS
The right sternalis muscle has a single belly and can be classified using the Snosek et al. classification system as a simple type, right single. The left sternalis muscle presented with three muscle bellies, each having a unique pattern of superior attachments (heads). This variation is previously undocumented and requires a more detailed classification.
CONCLUSIONS
We propose the addition of a new subtype of sternalis classification, as well as a modification to the Snosek et al. (Clin Anat 27:866-884, 2014) classification scheme, to include classification of different muscle bellies when multiple are present.
目的
强调临床背景下，了解解剖变异可减少误诊和手术并发症。我们报告一种此前未记录的胸骨肌变异，并推荐一种扩充的分类方案。
方法
对一名83岁女性尸体的前胸壁进行解剖，发现双侧胸骨肌。参考Snosek等人的分类系统来描述变异类型。
结果
右侧胸骨肌有一个肌腹，根据Snosek等人的分类系统可归类为简单型，右侧单一型。左侧胸骨肌有三个肌腹，每个肌腹都有独特的上部附着（起始部）模式。这种变异此前未被记录，需要更详细的分类。
结论
我们建议增加胸骨肌分类的一个新亚型，并对Snosek等人（《临床解剖学》27:866 - 884，2014年）的分类方案进行修改，以包括存在多个肌腹时不同肌腹的分类。
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