Abstract

The medicolegal autopsy is part of a death investigation that determines the cause and manner of death and the extent of the testing performed is variable and is directed by the specifics of a particular case. Published studies disagree on the value of routine examination of microscopic sections of internal organs in forensic cases and no studies have specifically reviewed the utility of routine neuropathology microscopic sections. We reviewed the Miami-Dade County Medical Examiner Department and Mayo Clinic computer databases to determine whether routine brain histology is of value in medicolegal autopsies and the impact on the cause and manner of death. Consecutive cases from each institution were analyzed to determine whether the microscopic neuropathological findings revealed a previously unrecognized disease, changed the cause or manner of death, or significantly impacted the death investigation. In the cases in which the immediate cause of death was attributable to central nervous system (CNS) pathology, the cause of death was readily apparent from the gross brain examination. If CNS pathology was the proximate cause of death, contributed significantly to the death, or was a significant part of the death investigation, full appreciation of the neuropathology required microscopic examination and often additional special/immunostains. We conclude that microscopic brain examination is needed in selected medicolegal autopsies to exclude and/or diagnose underlying disease processes, particularly if the gross examination doesn't reveal an obvious explanation of the CNS pathology or the clinical history suggests underlying neuropathology.

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