Rectal cancer with lung nodules is not necessarily lung metastasis, but may also be caused by other reasons.
Common causes of lung nodules include lung infection, long-term inhalation of dust, tumor lung metastasis and so on.
1. Lung infection: tuberculosis, pulmonary cryptococcal infection, schistosomiasis and other infectious diseases of the lungs will cause lung nodules. If rectal cancer occurs at the same time, it will manifest as rectal cancer with lung nodules.
2. Long-term inhalation of dust: Long-term inhalation of dust will cause diseases such as silicosis, leading to extensive nodular fibrosis in the lungs. If rectal cancer occurs at the same time, it will manifest as rectal cancer with lung nodules.
3. Tumor lung metastasis: rectal cancer metastasizes to lungs and causes lung cancer, which will be manifested as rectal cancer with lung nodules.
Rectal cancer with lung nodules may also be caused by other reasons, so one should go to the hospital in time, and the doctor will judge the cause of the disease according to the examination results and carry out targeted treatment.