Keywords: pneumococcal pneumonia pathogenesis of Pathology
Pneumococcal Usually by inhalation to the lungs through the upper respiratory tract. They stay within the bronchioles proliferate and cause inflammation process liquid began to produce large amounts of protein in the alveolar space, this fluid plays the role of bacteria culture medium, and can help the results of the bacteria spread to neighboring alveolar typical cause lobar pneumonia.
The initial stages of lobar pneumonia congestion, is characterized by a large number of serous exudate, rapid proliferation of blood vessels to dilate and bacteria. Called the red hepatization the next stage, that consolidation of the lungs was liver-like appearance: gas chamber full of polymorphonuclear nucleated cells, vascular congestion, and red blood cell extravasation, therefore visual inspection pale red. and then gray hepatization period, the period fibrin gathering in different stages of decomposition leukocytes and erythrocytes, alveolar spaces filled with inflammatory exudate. the final stage is the the dissipation of exudate absorption characteristics.