What does pulmonary nodule mean? What does pulmonary nodule mean?

1. Small pulmonary nodules are usually found during physical examination. Lung CT showed a round lung lesion. The types of pulmonary nodules can be divided into single nodules and multiple nodules. Some pulmonary nodules can disappear by themselves, while others will not. Local lesions larger than 3 cm in diameter are called lung tumors.

2. Small pulmonary nodules are not equal to early lung cancer. Many lung diseases will form nodules, such as inflammation, tuberculosis, mold, subsegmental atelectasis, bleeding and so on. Therefore, the possible diagnosis of pulmonary nodules can be said to be various, including inflammatory pseudotumor, hamartoma, tuberculoma, fungal infection, sclerosing lung cell tumor and so on. Malignant can be primary lung cancer or metastatic lung cancer. Of course, some benign lesions may become malignant after a long time. According to the statistics of large sample population, more than half of solitary pulmonary nodules with a diameter over 25px (1cm = 25px) are malignant. Such data tells us that we must never underestimate the small pulmonary nodules inadvertently found during physical examination. 80%-90% of the pulmonary nodules found in the initial CT examination are benign lesions, but we should attach great importance to them, because there is still a certain proportion of early lung cancer, and regular examination is essential.