Related Experiment Video
Updated: Jul 5, 2026

Implantation of Electroencephalogram and Electrocardiogram Telemetry Devices in Neonatal Rabbit Kits
Published on: February 28, 2025
Three unusual neuropathologic-related causes of sudden death
1Dutchess County Medical Examiner's Office, 387 Main Street, Poughkeepsie, NY 12601, USA. dchute@co.dutchess.ny.us
Abstract:
We discuss the autopsy findings of three medico-legal cases of sudden death associated with uncommon neuropathologic findings of which the general forensic pathologist may not be familiar. Case 1 was a 43-year-old man who died of a seizure due to malignant melanoma of the temporal lobe associated with neurocutaneous melanosis (NCM). Case 2 was a 57-year-old woman with a history of mental retardation and incoordination because of chronic lead poisoning, who died of a pulmonary thromboembolism due to deep venous thrombosis status post left leg fracture after a fall down a staircase. Autopsy revealed atrophy and gliosis of her cerebellum as a result of childhood lead poisoning. The third patient was a 75-year-old woman who died as a result of acute bacterial leptomeningitis at the cervico-medullary junction with acute inflammation of the connective tissue of her upper cervical spinal column associated with subluxation of her atlantoaxial (AA) joint, also known as Grisel's syndrome.
Insights
Forensic pathology cases reveal rare causes of sudden death, including neurocutaneous melanosis, chronic lead poisoning sequelae, and Grisel's syndrome. These findings highlight uncommon neuropathologic conditions relevant to medico-legal investigations.
Area of Science:
- Neuropathology
- Forensic Medicine
- Toxicology
Background:
- Medico-legal autopsies are crucial for determining cause of death, especially in sudden or unexplained cases.
- Uncommon neuropathologic findings can present diagnostic challenges for general forensic pathologists.
- This study examines three distinct cases with rare autopsy findings.
Observation:
- Case 1: Sudden death in a 43-year-old male due to seizure from temporal lobe malignant melanoma with neurocutaneous melanosis (NCM).
- Case 2: Sudden death in a 57-year-old female from pulmonary thromboembolism secondary to deep venous thrombosis after a leg fracture; autopsy showed cerebellar atrophy and gliosis from childhood lead poisoning.
- Case 3: Sudden death in a 75-year-old female from acute bacterial leptomeningitis at the cervico-medullary junction with associated Grisel's syndrome (atlantoaxial joint subluxation).
Findings:
- Malignant melanoma with NCM as a cause of seizure-related death.
- Chronic lead poisoning manifesting as cerebellar degeneration and contributing to fatal thromboembolism.
- Grisel's syndrome complicated by leptomeningitis leading to sudden death.
Implications:
- Highlights the importance of recognizing rare neuropathologic conditions in forensic practice.
- Underscores the long-term neurological consequences of childhood lead exposure.
- Emphasizes the need for comprehensive autopsy evaluation in complex medico-legal deaths.
- Provides valuable insights for pathologists dealing with unusual neurological and toxicological findings.
Related Concept Videos
Necrosis
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Overview of Cell Death
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...
Coronary Artery Disease III: Clinical Manifestations
Disorders of the Nervous Tissue
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Cellular Injury IV: Necrosis
Dysrhythmias II: Classification of Tachyarrhythmias
