Intrapulmonary lesions

Introduction Intrapulmonary lesions refer to pathological changes in the interior of the lung, leading to necrosis of the lung tissue, affecting the normal function of the lung. The name of the disease. Various symptoms of the lungs. Invaded by external evils, or sipped by cohesiveness, or caused by insufficient lung and yang yin, can also be caused by other viscera and blood vessels. The cause is not clear, physical, biological, and chemical factors can cause lung lesions. Tuberculosis and lung cancer are typical diseases of lung lesions. What is lung disease? Pulmonary disease refers to a type of disease syndrome that causes lung dysfunction and pathological changes under the influence of external or internal injuries. Pneumonia is inflammation of the lung parenchyma caused by various pathogens (such as bacteria, viruses, fungi, parasites, etc.). Others such as radiation, chemistry, and allergic factors can also cause pneumonia to occur in all seasons, and occur in winter and spring. .

Cause

The cause is not clear, physical, biological, and chemical factors can cause lung lesions. Tuberculosis and lung cancer are typical diseases of lung lesions.

an examination

Related inspection

Cardiopulmonary exercise test (CPET) lung imaging tumor tomography

X-ray examination, according to the film can be found to be different from the normal situation.

Differential diagnosis

First, how to identify localized pleural lesions and intrapulmonary lesions

The limited pleural lesions refer to encapsulated pleural effusion, encapsulated liquid pneumothorax and limited pleural hypertrophy. These lesions can sometimes appear in the following forms on the X-ray: 1. Circular shadows in the lung field, which may have eccentric "void" signs. 2, ring shadow, similar to the cavity in the lungs. 3, multiple fluid chambers containing liquid. 4, flaky shadows. If the above-mentioned morphological observations are not comprehensive, or the understanding is incorrect, it is easy to be misdiagnosed as tuberculosis, pulmonary hydatid, lung abscess, lung cancer, pneumonia and the like.

Pay attention to the following points when analyzing images:

(1) Round shadows in the lung field: The difference from the lesions in the lungs is that one side of the shadow (mostly the inner side) is often clear, while the other side is more blurred. When viewed at the tangential position, the edge of the shadow is obtusely angled to the chest wall, the base of the chest wall is wider, and there is a thickening of the pleura near it. It is worth noting that this pleural lesion can also appear as an "eccentric cavity" sign on the body layer.

(2) Circular shadow: similar to thick-walled hollows in the lungs. It is characterized by large cavities, irregular walls, and signs of pleural thickening in the vicinity or on the same side. On the positive side slice, the size of the "hole" is inconsistent.

(3) Multiple fluid-containing cavities: This type of limited pleural lesions are mostly located in the middle and lower fields. The position of the rotating body can be seen close to the chest wall, the outer edge of the lumen wall is clear, and the liquid level in the cavity changes rapidly.

(4) Large shadow: The pleural thickening can also be a large shadow in the lung field, mostly located in the lower field, and the rotation position can be proved to be inconsistent with the distribution of the lung segment of the lung, and the typical banded pleural thickening can be seen at the tangential position.

We feel that limited pleural lesions sometimes resemble intrapulmonary lesions in a certain positional photo, but multi-axis observation of rotational position, especially attention to tangential position observation, is generally identifiable.

Second, the cavity and the cavity are translucent lesions, what is the difference.

Both of them appear as translucent shadows on the X-ray film, but they are essentially different.

Cavity: formed after the necrosis of the diseased tissue in the lungs is discharged through the drainage bronchus. The cavity wall can be formed by necrotic tissue, granulation tissue, fibrous tissue, and tumor tissue, and is more common in tuberculosis and lung cancer. Thick wall voids and thin-walled voids can be divided according to the thickness of the cave wall. The thickness of the wall of a thick-walled cavity is equal to or greater than 3 mm. The thickness of the wall of a thin-walled cavity is less than 3 mm. Cavity: Unlike the cavity, it is a pathological enlargement of the physiological cavity in the lung. The pulmonary bullae, the gas-containing lung cyst, and the lung balloon belong to the cavity.

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