鼠齿作用下软组织死后损伤的形成:病例描述

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详细

由家鼠、野鼠等小型啮齿动物造成的死后损伤,是法医学鉴定中的重要内容。然而,有关此类损伤的系统化资料仍然有限。现有文献多为大鼠致伤的描述,而鼠齿造成的损伤研究相对较少。鉴于此,本文报道了一个病例,展示了鼠齿作用下软组织损伤的特点。

在某村一栋木屋内发现一具男性尸体,其颈部存在损伤。法医学尸检发现,右侧颈部外侧软组织存在缺损,并有迹象表明该损伤为死后形成,系小型啮齿动物(家鼠、野鼠)齿作用所致。在缺损深处发现完整的颈外静脉,并结合该软组织缺损系由小型啮齿动物齿作用死后形成的事实,排除了由锐器造成该损伤的可能性。

相较于大鼠,鼠类的咀嚼器官发育较弱,所致损伤深度有限,主要累及软组织,且多在组织较为坚硬时(如冬季组织变硬)啃咬,并具有特定的形态学特征。此外,鼠齿作用可能显著改变生前损伤的形态。然而,在损伤区域内发现的组织碎片、毛发及动物粪便等,可作为其参与的重要佐证,并需进行详细分析。

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作者简介

Olga S. Lavrukova

Petrozavodsk State University

编辑信件的主要联系方式.
Email: olgalavrukova@yandex.ru
ORCID iD: 0000-0003-0620-9406
SPIN 代码: 6395-8638

MD, Dr. Sci. (Medicine), Assistant Professor

俄罗斯联邦, Petrozavodsk

Alexey M. Kobzev

Bureau of Forensic Medical Examination

Email: sudmed2007@inbox.ru
ORCID iD: 0000-0002-7600-9808
SPIN 代码: 6746-6445

MD

俄罗斯联邦, Petrozavodsk

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补充文件

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1. JATS XML
2. Fig. 1. Postmortem soft tissue defect of the right lateral surface of the neck.

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3. Fig. 2. A fragment of skin from the right lateral surface of the neck with damage, removed for forensic medical examination.

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4. Fig. 3. A fragment of skin on the right side of the neck after restoration in special solutions: arrows indicate semicircles “cutting” into the undamaged skin.

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5. Fig. 4. Masticatory system of mice: a - incisors; b - diastema; c - molars.

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