MSD Manual

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MSD Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Keratin, cytology
keratin_cytology_high
Keratin, cytology

    These terminally differentiated keratin flakes are seen as irregular polygonal sheets like tissue paper with no nuclei. The dark dots are melanin pigment granules.

Courtesy of Abbey Veterinary Services.

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Cytology

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using leading-edge science to save and improve lives around the world.  The Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues in the online and mobile app versions today.

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