Ulnar osteosarcoma in dogs: 30 cases (1992-2008).

Objective: To examine the biological behavior of ulnar osteosarcoma and evaluate predictors of survival time in dogs.

Design: Retrospective case series.

Animals: 30 dogs with primary ulnar osteosarcoma.

Evaluation of 12- and 24-month survival rates after treatment with masitinib in dogs with nonresectable mast cell tumors.

Objective: To evaluate the effectiveness of masitinib for the treatment of nonresectable mast cell tumors (MCTs) in dogs at 12 and 24 months after onset of treatment.

Animals: 132 dogs with nonresectable grade 2 or 3 MCTs.

Procedures: Dogs received masitinib (12.