Photo courtesy Dr. Kendra Freeman 1. What is the most common type of primary lung tumor in dogs? a. Inflammatory granuloma b. Adenocarcinoma c. Chondroma d. Squamous cell carcinoma 2. True or false: Hypertrophic osteopathy has been reported in both dogs and cats. True. 3. True or false: Dogs with peripheral lung tumors have a better median survival time (MST) than dogs with tumors involving the entire lung. True. The MST of peripheral tumors is 16 months; the MST of entire lobe tumors is eight months. Reference Veterinary Society of Surgical Oncology.