What is the primary site for tumors in dogs?

The primary site for tumors in dogs is the lungs. Canine tumors can arise in various organs, but the lungs are notable for being a common site of both primary and metastatic tumors. Dogs can develop a range of lung tumors, including adenocarcinomas and squamous cell carcinomas, which can lead to signs such as coughing, difficulty breathing, and exercise intolerance. Additionally, the lungs often serve as a site of metastasis, meaning tumors from other parts of the body can spread to this organ.

While tumors can indeed arise in the liver, adrenals, and kidneys, the prevalence of primary lung tumors makes them a significant focus in veterinary oncology. Understanding the common locations for tumors in dogs helps veterinarians in diagnosis and treatment planning, emphasizing the importance of the lungs in the context of canine neoplasia.