Summary
The records and radiographs of 30 dogs with histopathologically confirmed tumours
affecting joints were reviewed. The previously most commonly reported primary joint
tumour, the synovial sarcoma, only represented eight of the 30 cases (27%). However,
the radiological appearance of this tumour was very similar to others such as the
fibrosarcoma, rhabdomyosarcoma, fibromyxosarcoma, malignant fibrous histiocytoma,
liposarcoma and undifferentiated sarcoma. Other tumours recorded were a mast cell
tumour, haemangiopericytoma, osteosarcoma, squamous cell carcinoma and amelanotic
melanoma.
This study shows that there are joint tumours that have a similar radiographic appearance
to synovial sarcomata, and confirms the importance of histopathological diagnosis.
This study shows that there are a number of different joint tumours which radiologically
resemble synovial sarcoma, and underlines the importance of accurate histopathological
diagnosis.
Keywords
Joint - tumour - radiology - dog