Increased lung markings

Introduction Lung texture refers to the radial strip shadow that extends from the hilar to the periphery of the lung field as seen during chest imaging. It is mainly composed of pulmonary artery, pulmonary vein, bronchus and lymphatic vessels. There are four types of lung texture on X-ray chest radiographs: four types of bronchial lung texture, increased vascular lung texture, increased lymphatic lung texture, and increased smoking lung texture.

Cause

There are many reasons for the increase in lung texture, which can be pathological or physiological or technical. In general, the reported increase in lung texture in isolation is mainly seen in the elderly and obese. The former is due to the relatively abundant lung interstitium in the elderly, which shows an increase in lung texture on the chest X-ray. The latter is due to the obesity of the subject, increased subcutaneous fat, resulting in increased X-ray absorption, resulting in the illusion of increased lung texture on the chest radiograph, a total clinical value is not large. Only by carefully analyzing the nature of the increase in lung texture and combining it with other X-ray findings and clinical conditions and technical conditions can we draw correct conclusions.

an examination

Related inspection

Lung ventilation imaging lung biopsy

There is no obvious change in the early stage. Repeated acute authors showed that the texture of the two lungs was thickened and disordered, showing a reticular or strip-like and spotted shadow, and the following lung fields were obvious. This is due to thickening of the bronchial wall, infiltration or fibrosis of bronchial or alveolar interstitial inflammatory cells. Increased bronchial lung texture: the unevenness of the lung texture, often with deformation texture and small honeycomb shadow, common in chronic bronchitis, bronchiectasis and other bronchoalveolar perfusion examination: the use of fiberoptic bronchoscopy inserted into the left lung tongue or right lung In the middle lobe, flush with saline to obtain bronchoalveolar lavage fluid. The lavage fluid was assayed for cytological and non-cellular components. .

Differential diagnosis

Differential diagnosis:

(1) Increased bronchial lung texture: manifested as uneven thickness of the lung texture, which often contains deformation texture and small honeycomb shadow, which is common in chronic bronchitis and bronchiectasis.

(2) Increased vascular lung texture: The lung texture is coarse, and the characteristics of keeping the blood vessels from the hilar to the lung are often accompanied by the manifestation of cardiac enlargement, mainly in rheumatic heart disease and congenital heart disease.

(3) Increased lymphatic lung texture: The lung texture is slender in the lungs, which is common in pneumoconiosis and cancerous lymphangitis.

(4) Increased smoking lung texture: showed increased lung texture, but normal walking, mainly due to carbon deposition caused by long-term smoking.

(5) Increased physiological lung texture: mainly found in the elderly and obese. The former is due to the relatively abundant lung interstitium in the elderly, which shows an increase in lung texture on the chest X-ray. The latter is due to the obesity of the subject's body fat, increased subcutaneous fat, resulting in increased X-ray absorption, resulting in the illusion of increased lung texture on the chest radiograph.

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