Pulmonary nodules are focal, rounded, hyperdense shadows less than or equal to 3 cm in diameter on lung imaging.
Lung nodules mainly refer to focal, round-like, hyperdense shadows of various sizes, with clear or blurred margins, and with a diameter of less than or equal to 3 cm on lung imaging, which may be isolated or multiple, and are not accompanied by pulmonary atelectasis, hilar lymph node enlargement, and pleural effusion. Most patients do not have obvious symptoms, usually found during physical examination.
Patients are advised to recognize lung nodules under the guidance of their doctors, and if they develop lung nodules, they need to consult a doctor for targeted treatment in a timely manner.