INTRAMEDULLARY SPINAL-CORD METASTASIS OF A PRIMARY LUNG-TUMOR IN A DOG

A dog was presented with signs of subacute, progressive myelopathy. A tentative diagnosis of a diffuse intramedullary spinal cord mass was m ade using contrast radiography (myelography). At autopsy a solitary, l arge bronchoalveolar carcinoma was detected in a lung lobe. Histologic al examination of the cranial thoracic spinal cord revealed a tumour w hich was similar, but not identical, to the lung tumour. Immunohistoch emistry helped to confirm that the spinal lesion was a metastasis of t he lung tumour.