Linch C A, Prahlow J A
Division of Forensic Science, Richmond, VA 23218, USA.
J Forensic Sci. 2001 Jan;46(1):15-20.
Only two types of human hair roots (proximal ends) derived from decomposing scalps are reported in the literature. The most common representation of the putrid root includes a postmortem dark root band in published photomicrographs. In this study, 22 cases were reviewed in which there was reliable time of death documentation from medical investigator reports. A review of these cases finds that the most common putrid hair proximal end change does not contain the postmortem root band. Four primary types of hair proximal end postmortem change were identified. This study finds no correlation of time of death with scalp hair proximal end decomposition. In addition two examples are presented that suggest that hair roots do not decompose after fresh removal from the scalp and exposure to the outside elements.
文献中仅报道了源自腐烂头皮的两种人类发根（近端）。在已发表的显微照片中，腐根最常见的表现形式包括死后深色根带。在本研究中，回顾了22例有医学调查员报告提供可靠死亡时间记录的案例。对这些案例的回顾发现，腐根近端最常见的变化并不包含死后根带。确定了四种主要的发根死后变化类型。本研究发现死亡时间与头皮发根近端腐烂之间没有关联。此外，还给出了两个例子，表明发根在刚从头皮上取下并暴露于外界环境后不会腐烂。
