Introduction
   

Osteosarcoma

History:

A hard, bony mass was detected over the dorsal trunk of a 12 year old dog.

 

The overlying epidermis is thick, and there is excess amount of keratin. The dermis is very consolidated due to infiltration by neoplastic cells. (x40)

Slide ref: 95V972B

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Lymphatic Invasion
Transplantation
Haematogenous Spread
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