Abstract A 9.5‐year‐old labrador presented with signs of progressive C1–C5 myelopathy. Magnetic resonance imaging the cervical spine revealed a broad‐based, jagged and partially ill‐defined intradural mass lesion at level C3–C4 vertebra. Decompressive spinal surgery was performed removed sent for histopathological examination that identified an extraosseous osteosarcoma. This very rare canine t...
