Freezing preparation for macroscopic forensic investigation in putrefied brain

Area of Science:

• Forensic Pathology
• Neuroscience
• Medical Imaging

Background:

• Assessing putrefied brains macroscopically presents significant challenges due to tissue degradation.
• Standard autopsy procedures often result in structural collapse and poor visualization of brain parenchyma.

Purpose of the Study:

• To evaluate the efficacy of a freezing technique for macroscopic examination of putrefied human brains.
• To determine if freezing improves the preservation and visualization of brain structures.

Main Methods:

• Brains from 20 cadavers were analyzed: 10 using standard methods (control) and 10 using a pre-autopsy freezing technique.
• Macroscopic evaluation focused on the preservation of brain structure and the visibility of gray-white matter differentiation.

Main Results:

• The freezing technique resulted in the extraction of putrefied brains as solid organs, unlike the sludge-like consistency in the control group.
• Gray-white matter differentiation was significantly better preserved and visible in the freezing group (mean score 8.3) compared to the control group (mean score 4.4).

Conclusions:

• The applied freezing technique is a valuable and statistically superior method for the macroscopic investigation of putrefied brains.
• This technique enhances structural integrity and gray-white matter distinction, aiding forensic analysis.
• Postmortem CT can assess both brain putrefaction and freezing effectiveness.