Is the pulmonary grinding glass nodule be malignant?

Cheng Lihui, First Affiliated Hospital of Henan University of Traditional Chinese Medicine

The pulmonary grinding glass nodule refers to the clear, round or round -shaped of the chest CT (computer fault scanning), which shows the increase in nodular density. film.

The pulmonary grinding glass nodules are divided into pure grinding glass nodules and mixed glass nodules according to the existential ingredients.

At present, the chest CT examination project is widely launched in China, and more and more asymptomatic lung grinding glass nodules are found.

Many patients are worried because of these nodules, fearing that they are malignant, and even into anxiety. Is the pulmonary grinding glass nodule be malignant?

Is the pulmonary grinding glass nodule be malignant?

The answer is of course negative.

The benign pulmonary grinding glass nodules are small in size, and the rules are round or irregular; the edge rules are neat or sharp or blurred; uniform density, no empty bubbles and bronchial signs. Signs of signs; internal non -microvascular walking; dynamic observation of short -term changes in nodules.

Microvascular imaging symbols may appear in the nodules of malignant lung grinding glass; mixed density and solid components occur; enhanced the solid components in the nodules when scanning, light to moderate reinforcement; Expansion signs; nodules are leaf -shaped, bronchial truncations; pleural depression signs around the nodules, etc.; Dynamic follow -up finds that the nodules are enlarged, the solid composition is increased, the edges of the nodules are irregular, the burrs, leaflets, nodules, nodules, nodules Internal tributary cutting appears.

Picture source Pexels.

What should I do after I found the lung grinding glass nodule?

When the isolated pure milling glass nodules and the diameter ≤5 mm, the low -dose CT follow -up after 2 years, and the follow -up after 4 years without changes.

When the isolated pure ground glass nodules and the diameter> 5 mm, the CT review was performed 3 months after the lesion. If the lesion continues and has not changed, the CT follow -up review is performed every year, which lasts for at least 3 years, and then follows up for a long time.

For purely grinding glass nodules with a diameter of more than 10 mm, the shape of the empty bubble signs can be seen inside, the malignant may be greater. It is recommended to remove it.

The isolated mixed glass nodules are recommended to review after 3 months. The lesions will be faded and the lesions will be reviewed to the lesion disappear after February. When the lesion does not change or increase, it is considered to be malignant, and surgical resection is recommended.

For a mixed glass nodule with a diameter of more than 10 mm and a solid part> 5 mm, a puncture or PET-CT can be considered for further inspection.

Picture source Pexels.

Those with multiple pure milling glass nodules and clear borders, diameter ≤ 5 mm are recommended to review at 6 months, and the lesion continues to be reviewed after 1 year. If there is no change, the follow -up cycle is 2 years. Increase, increase, and increase the follow -up cycle, or selectively remove local lesions by evaluating; reducing, fade or absorbing will extend the follow -up cycle or terminate the follow -up.

There are more purely grinding glass nodules and at least one diameter is> 5 mm. Those with no prominent lesions are recommended. CT follow -up 3 months after the first examination, and then once a year CT check every year, at least 3 years. Increase, increase, and increase the follow -up cycle, or selectively remove local lesions by evaluating; reducing, fade or absorbing will extend the follow -up cycle or terminate the follow -up.

There are those who have multiple lung grinding glass nodules with prominent lesions. CT follow -up 3 months after the first examination. If the lesions continue to exist, it is recommended to highlight the lesion or surgical treatment.

For a protruding lesion with diameter of internal solid ingredients> 5 mm, it is recommended to give conservative lobe division.

In short, CT examinations can neither let go of the lung grinding glass nodules, nor excessive treatment. Be sure to obey professional doctors' suggestions. If you suspect it is malignant, actively cooperate with the doctor for treatment.

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