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Related Experiment Video

Updated: Jun 2, 2026

A Preclinical Controlled Cortical Impact Model for Traumatic Hemorrhage Contusion and Neuroinflammation

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Published on: June 10, 2020

[Postmortem bruising].

Maciej Barzdo¹, Leszek Zydek, Anna Smedra-Kaźmirska

¹Zakładu Medycyny Sadowej Katedry Medycyny Sadowej Uniwersytetu Medycznego w Łodzi.

Archiwum Medycyny Sadowej I Kryminologii

|April 28, 2011

Summary

Bruises can form hours after death, challenging the assumption that they always indicate antemortem injuries. This forensic finding impacts the interpretation of postmortem bruising in injury analysis.

Area of Science:

Forensic pathology
Medical-legal investigation

Background:

Determining the timing of injuries (antemortem vs. postmortem) is crucial in forensic examinations.
Existing literature largely considers bruises as indicative of antemortem trauma.

Observation:

The authors documented over a dozen cases of postmortem bruising.
These bruises appeared several hours after death.
They were inflicted during postmortem examination, specifically during idiomuscular testing.

Findings:

Observed bruises exhibited central ischemia and a transverse orientation relative to limb axis.
Incision revealed shiny ecchymosis (suggilation) in subcutaneous tissue.
Histopathology confirmed blood extravasation.

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Implications:

This study challenges the established view on bruise origin.
It highlights the potential for postmortem artifact to mimic antemortem injury.
Forensic investigators must consider postmortem bruising in their assessments.