Today’s case is an 8-year-old male neutered Great Dane with a mass on its head. The mass has been enlarging over the last 6 months. What are your findings?
A single right lateral projection of the skull is available. There is a large, lobulated osseous mass arising from the dorsal aspect of the calvarium, which has a mottled, stippled appearance. There is a large concurrent defect in the region of the calvarium.
- Multilobular osteochondrosarcoma