J Med Entomol. 2014 May;51(3):716-9. doi: 10.1603/me13229.
The infestation of human or animal tissues by fly larvae has been given distinctive terminology depending on the timing and location of colonization. Wounds and orifices colonized by Diptera in a living human or animal are typically referred to as myiasis. When the colonization occurs after death, it is referred to as postmortem colonization and can be used to estimate the minimum postmortem interval. What happens when the human, as in the case presented here, has a necrotic limb while the human remains alive, at least for a short period of time? The case presented here documents perimortem wound colonization by Lucilia eximia (Wiedemann) and Chrysomya rufifacies (Macquart) and the considerations for approximating development temperatures and estimating the time of colonization (TOC). This represents the first record of L. eximia in human myiasis in the United States and the first record of the co-occurrence of L. eximia and C. rufifacies in human myiasis in the United States. The TOC was estimated using both ambient and body temperature. Insect colonization before death complicates the estimation of TOC and minimum postmortem interval and illustrates the problem of temperature approximation in forensic entomology casework.
蝇幼虫侵袭人体或动物组织的情况,根据其定殖的时间和位置,有特定的术语。在活体的人和动物的伤口或孔道中定殖的双翅目昆虫通常被称为蝇蛆病。当死亡后发生定殖时,被称为死后定殖,可以用来估计最小死后间隔时间。如果人类像这里提出的案例一样,肢体已经坏死,但人类至少在短时间内还活着,会发生什么情况?这里提出的案例记录了腐生性蝇科(Lucilia eximia)(威氏)和红头丽蝇(Chrysomya rufifacies)(马克奎特)在濒死期伤口的定殖,并考虑了估计发育温度和定殖时间(TOC)的方法。这代表了美国首例腐生性蝇科在人体蝇蛆病中的记录,也是美国首例红头丽蝇和腐生性蝇科在人体蝇蛆病中共存的记录。TOC 同时使用环境温度和体温进行了估计。死亡前昆虫的定殖使 TOC 和最小死后间隔时间的估计变得复杂,并说明了法医昆虫学案例中温度近似的问题。