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Related Experiment Video

Updated: Apr 28, 2026

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

Published on: September 27, 2020

New pitfalls of high-density postmortem computed tomography.

Ayumi Kanazawa¹, Hideki Hyodoh¹, Satoshi Watanabe¹

¹Department of Legal Medicine, Sapporo Medical University School of Medicine, Japan.

Legal Medicine (Tokyo, Japan)

|June 12, 2014

Summary

This summary is machine-generated.

Postmortem CT revealed a high-density lesion in the putamen of a deceased accident victim. Autopsy identified superabsorbent polymers (SAPs) as the cause, highlighting the need to consider both ante- and postmortem conditions to prevent misdiagnosis.

Keywords:

Cremation Pitfall Postmortem CT Superabsorbent polymer Trauma

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Area of Science:

Forensic Pathology
Radiology
Neuropathology

Background:

A fatal traffic accident resulted in multiple cranial fractures, intracranial hemorrhage, and air in an 80-year-old female.
The patient received medical treatment but unfortunately passed away within 6 hours of admission.

Observation:

Postmortem computed tomography (CT) was performed 21 hours after death.
A distinct region of high density was observed within the left putamen on the postmortem CT scan.

Findings:

Autopsy examination revealed cerebral contusion and multiple skull base fractures.
Crucially, superabsorbent polymers (SAPs) were identified within the left lateral ventricle and adjacent to the putamen.
These SAPs, compacted in the left putamen, presented as the high-density lesion seen on postmortem CT.

Implications:

This case underscores the critical importance of integrating ante- and postmortem findings in forensic investigations.
Misinterpretation of postmortem imaging findings, such as SAPs, can lead to diagnostic errors.
Careful correlation of imaging with autopsy results is essential for accurate postmortem diagnosis.