What is the meaning of ground glass nodule in lung?

Such as chest X-ray or chest CT, ground-glass nodules are found in the lungs, which are more common in inflammation, tuberculosis, tumors and other diseases. If the nodule is small and the patient has no obvious symptoms such as cough, chest pain and hemoptysis, clinical observation can be carried out, and chest CT can be reviewed after 3-6 months. If the nodule does not grow up, clinical observation can be continued. During reexamination, if it is found that the nodule tends to grow up, or the nodule is larger than 1cm at the beginning, or the patient has symptoms such as cough, expectoration, chest pain and hemoptysis, it is necessary to go to the hospital for further examination and definite diagnosis, such as bronchoscopy and CT-guided puncture. Thoracoscopic surgery can be performed when necessary to further confirm the diagnosis.

First, the lung is the respiratory organ of the human body and an important hematopoietic organ of the human body. It is located in the chest, one on the left and one on the right, covering the heart. The lungs are divided into leaves, two on the left, three on the right and five on the * *. The lung is connected with the throat and nose through the lung system (trachea, bronchus, etc.). ), so the throat is called the portal of the lung, and the nose is the orifice outside the lung. The essence of lung is a summary of the physiological and pathological characteristics of lung. Physiologically, the lungs are delicate and delicate, full when inhaled, and exhale in time and space, which is the canopy of viscera and the meeting place of hundreds of pulses; Pathologically, the evil of exogenous six evils enters from fur or mouth and nose, which is often easy to commit lung disease; Other visceral diseases usually involve the lungs. Qi governs breathing: lung governs breathing, which means that the lung is a place for gas exchange. For example, Su Wen's Theory of Yin and Yang should be like a big picture says: "The weather is connected with the lungs." Through the respiratory function of the lungs, clean air is continuously inhaled, turbid air is discharged, and innovation is brought forth, thus realizing the gas exchange between the body and the external environment and maintaining the life activities of the human body.

In fact, the function of lung controlling breathing is the concrete manifestation of lung qi function in the process of gas exchange: lung qi announces and turbid qi exhales; When lung qi drops, clear qi can be inhaled. If the spread and decline of lung qi are coordinated and orderly, breathing will be even and unobstructed. There are clinical manifestations of abnormal breathing when lung qi does not rise or lung qi does not fall, but the clinical manifestations are different. If internal drinking is triggered by external factors, airway obstruction and lung qi disharmony are mostly chest tightness, shortness of breath or asthma; If the liver fire is inflamed, the lung yin is damaged and the lung is depressed, it will lead to asthma and cough.

Second, the blood vessels in the whole body belong to the heart, and heart qi is the basic driving force of blood circulation. The operation of blood depends on the promotion and regulation of lung qi, that is, lung qi has the function of helping the heart promote blood circulation. The lung regulates the whole body qi movement through respiratory movement, thus promoting blood circulation. Therefore, "Su Wenping's People's Meteorology" said: "When people breathe a pulse, they will move again." "Difficult Classics" says: "People can have a pulse of three inches at a time and a pulse of three inches at a time." At the same time, the natural clear air inhaled by the lungs is combined with the valley air transformed from Shui Gu essence transported by the spleen and stomach to produce ancestral air, which has the function of "penetrating the heart pulse" and promoting blood circulation. When lung qi is abundant, ancestor qi is vigorous, and qi flow is unobstructed, blood supply is normal. If the lung qi deficiency is weak or congested, it can not help the heart to circulate blood, which can lead to poor blood circulation in the heart, and even blood stasis, palpitation, chest tightness, blue lips and purple tongue. On the other hand, deficiency of heart-qi or deficiency of heart-yang, and poor blood circulation in the heart will also affect the spread of lung-qi, resulting in symptoms such as cough and asthma.

Thirdly, lung is the main indication, that is, lung qi has the function of regulating lung respiration and qi and blood and water in the whole body. "On the Secret Classics of Linglan" said: "The official of the lungs is Fu, but how to treat the festival." The physiological function of the main lung segment is mainly manifested in four aspects: First, regulating respiratory movement: coordinating the propaganda and harmony of lung qi, keeping breathing stable and uniform, and making the gas in and out of the body exchange normally. The second is to regulate the whole body's qi: through breathing exercise, regulate the rise and fall of the whole body's qi and keep the whole body's qi unobstructed. The third is to control and regulate the blood circulation: through the ascending and descending movement of the lungs to the pulse and qi, the heart is assisted, and the blood circulation is promoted and regulated. Fourth, control and regulate the metabolism of body fluid: control and regulate the distribution and excretion of body fluid through the spread and inhibition of lung qi. It can be seen that the main physiological functions of the lung are highly summarized.