Peripheral blood elements found in an Egyptian mummy: a three-dimensional view

Area of Science:

• Paleopathology
• Egyptology
• Forensic Anthropology

Background:

• Analysis of ancient biological samples provides insights into past health and disease.
• Preservation of cellular structures in ancient remains is rare and offers unique research opportunities.

Observation:

• Intact peripheral blood elements, including erythrocytes, neutrophils, lymphocytes, and platelets, were identified within an intracranial mass from a 2200-year-old Egyptian female mummy.
• The mass was consistent with either an antemortem subdural hematoma or a postmortem blood clot.
• Scanning electron microscopy revealed distinct surface topographies of neutrophils and lymphocytes, with erythrocytes retaining partial biconcave disk shapes and platelets exhibiting pseudopodia.

Findings:

• The cellular morphology suggests a remarkable state of preservation of blood components.
• Erythrocytes showed variations from typical biconcave disks to spherical shapes.
• Platelets displayed evidence of cellular activity through pseudopodia, despite the ancient age of the sample.

Implications:

• This finding demonstrates the potential for detailed cellular-level analysis in ancient mummified tissues.
• Understanding blood clot formation and preservation in ancient contexts can inform paleopathological diagnoses.
• The study highlights advanced preservation techniques or unique environmental conditions contributing to the cellular integrity.