Some people found that there is nodule in the lungs after a chest CT, and they were very worried and confused. They often asked: "I don't smoke, why do I get a lung nodule?" "Is this lung nodule benign or malignant?" "Will it disappear by itself?" With these questions, let's learn about lung nodules in this episode.
online great doctor: Qiu Minglian
First Affiliated Hospital of Fujian Medical University Thoracic Surgery
Deputy Chief Physician Doctor of Medicine Associate Professor Master Supervisor
Young Deputy Chairman of the Thoracic Surgery Branch of Fujian Medical Association
Topic of this issue: Understand lung nodules, and never worry about it from now on
What is a lung nodule
Lung nodule is not a disease name, but an imaging term.
means that there are some small, localized, elliptical or irregular physiological or pathological tissues in normal lung tissue, and nodules are shown on CT or chest X-rays. Which type of nodule is worth paying attention to
pulmonary nodule has the following changes during follow-up, and it is often considered malignant:
diameter increases, and the doubling time conforms to the tumor growth pattern;
lesions are stable or enlarged, and solid components appear;
lesions shrink, but solid components appear or solid components increase;
angiogenesis is in line with the malignant lung nodule;
lobes, burrs and pleural depressions occur.
How to determine whether it is lung cancer
Theoretically speaking, lung cancer can only be diagnosed if it is obtained with a clear histological diagnosis, that is, it is necessary to pass invasive examinations such as surgery and puncture to make it clear.
As doctors improve their awareness of lung nodules, the diagnostic accuracy rate of non-invasive examination methods such as CT and PET-CT is also very high. A typical early stage lung cancer can also be diagnosed.
The interpretation of the nature of lung nodules cannot be searched online by yourself. You should find a responsible professional team to interpret the results for you.
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1-3mm lung nodules
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4-6mm is a solid nodule, it mostly does not require surgery and only observation is required. If it is ground glass nodules, you don’t need to rush surgery. It is recommended to observe regularly for three months to six months, or review once a year. It's not too late to operate when they have changes. Of course, if the ground glass nodule is typical in shape and has a shallow position, you can also actively operate.
7-10mm lung nodules
If it is a typical ground glass or mixed ground glass shadow, it basically requires surgical treatment. Of course, it was discovered for the first time in , and it can also be observed for 1 to 3 months, or given certain medications, but it did not disappear and then the surgery was performed. During the observation period, the condition will not be delayed. If it is a solid nodule, it can be observed for a long time and the surgery will be carried out in time once there is a change.
10-30mm lung nodules
Theoretically, no matter whether it is benign or malignant, surgery should be performed. , but from the imaging manifestation, if it is typical benign (such as calcification, etc.), it does not need to be removed. Nodules that cannot be identified before surgery should be considered for surgery.
The reason for forming lung nodules
Generally speaking, there are three types of causes:
, various acute inflammations, chronic inflammations: such as colds, or bacteria, fungi, tuberculosis , viral infections, etc.. Tumor lesions: lung cancer, benign tumors, metastatic tumors, etc. 3. Other causes: lymph nodes in the lungs, malformed blood vessels, etc.
How to prevent lung nodules
does not have a clear and effective prevention method.
Since lung nodules include a variety of causes, there are no clear and effective prevention methods for a while, except for changing bad living habits (such as quitting smoking and drinking), paying attention to labor protection and personal protection in toxic and harmful jobs (such as wearing a suitable mask when working with heavy dust, etc.), reducing outdoor activities in severe smog weather and taking good personal protection, there is currently no clear and effective prevention method.
Don’t blindly believe in the so-called lung washing, diet therapy, health care and other statements that have no scientific basis.
doctors introduced
Qiu Ming Lian
Ph.D., associate professor, master's supervisor, Department of Thoracic Surgery, First Affiliated Hospital of Fujian Medical University, Deputy Chief Physician, member of the expert group of lung cancer and small lung nodules of the First Affiliated Hospital of Fujian Medical University, Deputy Chairman of the Youth Committee of the Thoracic Surgery Branch of Fujian Medical Association, First Prize in the China Thoracic Surgery Young Doctors Minimally Invasive Surgery Competition.
