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Microchip-associated sarcoma in a shrew (Suncus murinus).

Leah K Schutt¹, Patricia V Turner

¹Department of Pathobiology, University of Guelph, Guelph, Canada.

Journal of the American Association for Laboratory Animal Science : JAALAS

|September 23, 2010

Summary

This summary is machine-generated.

A microchip implanted in a house musk shrew was associated with a rapidly growing soft tissue sarcoma. This is the first reported case of microchip-associated cancer in this species.

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Area of Science:

Veterinary Pathology
Oncology
Comparative Medicine

Background:

Subcutaneous masses in small exotic mammals require thorough investigation.
Microchip implantation is a common identification method in companion animals and research subjects.

Observation:

A 16-month-old house musk shrew (Suncus murinus) presented with a rapidly growing interscapular mass.
Necropsy revealed a subcutaneous mass containing a microchip, with associated splenomegaly.

Findings:

Histopathology confirmed a high-grade soft tissue sarcoma with multifocal necrosis.
Immunohistochemistry indicated a poorly differentiated mesenchymal tumor, positive for neuron-specific enolase.

Implications:

This case highlights a potential risk of microchip-associated sarcoma in shrews.
Further research is needed to understand the tumorigenesis mechanism and long-term effects of microchips in small mammals.