Is a carotid body tumor cancerous?

A carotid body tumor, also known as a carotid body paraganglioma, is typically a benign tumor that arises from the carotid body, a small structure involved in regulating blood pressure and respiration. While most carotid body tumors are non-cancerous, they can exhibit aggressive behavior and have the potential to metastasize in rare cases. Therefore, although they are primarily benign, careful evaluation and monitoring are essential. Treatment often involves surgical removal, especially if the tumor is symptomatic or growing.