5/03/2008

The classification of emphysema

The classification of emphysema

According to the acinar affected by the disease (the distal end Bronchioloalveolar lung tissue) to classify sites. Lobular of the whole (PAE) affect all acinar, lobular Central (CLE) in respiratory bronchiole and its environs. CLE is smoking Among the most common type of emphysema, lung and the upper front of the more serious lesions at the bottom. Smokers have accompanied the focal PAE CLE, are mainly located in the lung at the bottom. Smoking emphysema patients simply CLE 25 per cent, 25 per cent pure PAE, mixed-50 per cent. Mild CLE, pitting the increase in disease severity, flexible protein also disappeared. In PAE, elastic protein continued to decrease, but no loss of impact. In the light Of CLE, gas chamber tends to reduce compliance, but in PAE, increase compliance. Remote acinar emphysema (interval side or under the pleural emphysema) in the pleura or along the fibers of the interval occurred. I did not often lung damage, it can maintain good lung function, unless there is a partial many serious diseases. This The type of emphysema, and often occurred in Feijian, resulting in young people's spontaneous pneumothorax and may cause lung great big bubble. Bullous ≥ 1 cm in diameter that the gas chamber. Bullous can become very large, full side of chest. The bubble can be completely hollow or the gas chamber for the lung tissue of the cable through the local severe emphysema. Big Bubble is not part of a general emphysema, a rare lung tissue adjacent to the oppression and severe damage to lung function. With increased fibrosis of the gas chamber, formally known as the scar emphysema, may be non-adjacent scar coherent lesions, or may be clinically important and serious, the merger fibrosis diseases such as tuberculosis, composed of silicon or Sarcoidosis. Emphysema without much of the anatomy classification clinical significance, however, the lungs in different regions of the good parts, and connective tissue in the different capacity - pressure on the relationship between the etiology and suggested that the mechanism is different from different forms of emphysema, Embodies the stereotypical reaction of the lung damage.

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