Sudden unexpected death due to B-cell acute lymphocytic leukaemia (B-ALL) in a 3-year-old child

Area of Science:

• Pediatric Hematology
• Toxicology
• Forensic Pathology

Background:

• Sudden unexpected death in children due to hematologic disorders is rare.
• A 3-year-old girl presented with prolonged illness, including cough, fever, vomiting, and fatigue, without medical consultation.
• The child experienced a collapse, leading to hospitalization with severe respiratory distress and hemorrhage.

Purpose of the Study:

• To report a rare case of sudden death in a child attributed to hematologic disease.
• To investigate the underlying causes of death through autopsy and toxicological analysis.
• To discuss the medicolegal implications, including parental duty of care.

Main Methods:

• Autopsy examination to determine the cause of death.
• Histopathological analysis of organs for signs of disease.
• Toxicological screening of blood and hair samples for drug substances.

Main Results:

• Autopsy revealed severe anemia and extensive infiltration of atypical mononuclear cells in multiple organs, consistent with B-cell acute lymphocytic leukemia (B-ALL).
• The immediate cause of death was identified as intra-alveolar exudation, indicative of acute pneumonia.
• Toxicological tests detected morphine, amphetamine, and THC in the child's biological samples.

Conclusions:

• B-cell acute lymphocytic leukemia (B-ALL) was the underlying fatal hematologic disease.
• Acute pneumonia precipitated the fatal outcome in a severely anemic child.
• The case underscores the medicolegal considerations of delayed medical care for critically ill children.