Pneumococcal pneumonia in the pathology and pathogenesis

Pneumococcal pneumonia in the pathology and pathogenesis

Pneumococcal general through inhalation, the upper respiratory tract reach the lungs. Bronchiole their stay in the proliferation and cause inflammation process, begun in the alveolar cavity of a large amount of protein liquid, liquid growth media to play the role of bacteria, germs and help Adjacent to the alveolar proliferation, the typical result is led Lobar Pneumonia.

Lobar Pneumonia is the initial stage of congestion, is characterized by a large number of serous leakage, vascular expansion and the rapid proliferation of bacteria. The next stage called "red liver-like", namely, consolidation of a liver-like appearance of the lungs: a gas chamber Polymorphonuclear cells, red blood cells and blood vessels congestive extravasation, the naked eye examination Chengdan red. Followed by "Grey liver-change" period, the period of fiber and protein aggregation at different stages of decomposition of the WBC and red blood cells, alveolar space filled with inflammatory Exudation of. Oozed from the final phase of absorption is characterized by dispersed phase.