An 11-week-old rottweiler puppy was presented for evaluation of progre
ssive paraparesis, urinary and faecal incontinence. Radiography and my
elography revealed widening of the vertebral canal and remodelling of
several lumbar vertebrae associated with an intramedullary spinal mass
. Magnetic resonance imaging revealed an extensive, heterogeneous mass
involving the lumbosacral spinal cord, Histopathological examination
indicated a meningeal sarcoma with very varied cytological architectur
e.