This week’s case is a young dog with facial asymmetry and epistaxis. What are your differential diagnoses?
FindingsThere is a palisading mineral opacity mass and/or periosteal reaction arising from the frontal bone, seen best on the lateral images. The mass has a thin rim and is curved in shape. There is an ill defined region of osteolysis ventral to the proliferative region. The soft tissues overlying the mass are thickened. The remainder of the skull appears normal.
- primary bone tumor (osteosarcoma, chondroma, multilobular tumor of bone)