Low density is a tumor.

Low density lesions are not necessarily tumors. In

addition to tumors, there are many other conditions that may lead to low density lesions. For example, some cystic lesions, such as liver cysts, renal cysts, etc., may also present low density lesions in imaging examinations. These are usually benign, not tumors. In addition, local inflammatory reactions may also appear similar to low density lesions in the course of disease development.

Due to certain limitations and uncertainties in imaging examinations, low density lesions are only a preliminary indication, and cannot be diagnosed as tumors by this alone. Comprehensive judgment and analysis should be made in combination with clinical symptoms, signs, other examination results, and dynamic observation.