AcutetracheobronchitisAcute catarrhal tracheobronchitis. The inflammatoryexudate on the mucosal surface is chiefly a stringy,basophilic mucus only scantily mixed with leukocytes.Acute suppurative tracheobronchitis. There is a significantelement ofleukocytic infiltration.Acute ulcerative tracheobronchitis. The inflammatoryreactionis more intense, with necrosis of the mucosa inareas, it constitutes an ulcerative form
Acute tracheobronchitis Acute catarrhal tracheobronchitis. The inflammatory exudate on the mucosal surface is chiefly a stringy, basophilic mucus only scantily mixed with leukocytes. Acute suppurative tracheobronchitis. There is a significant element of leukocytic infiltration. Acute ulcerative tracheobronchitis. The inflammatory reaction is more intense, with necrosis of the mucosa in areas, it constitutes an ulcerative form
AcutebronchiolitisThe bronchioli mucosa is hyperemia and swellingwith a lymphomonocytic and leukocyticinfiltration of the submucosa accompanied byoverproduction of mucous secretions.Bronchiolitis obliterans is characterized bypolypoid masses of organizing inflammatoryexudates and granulation tissue extendingfrom alveoli into bronchioles
Acute bronchiolitis The bronchioli mucosa is hyperemia and swelling with a lymphomonocytic and leukocytic infiltration of the submucosa accompanied by overproduction of mucous secretions. Bronchiolitis obliterans is characterized by polypoid masses of organizing inflammatory exudates and granulation tissue extending from alveoli into bronchioles
PneumoniaBacteria pneumonia1.Lobarpneumoniaan acute bacterialinfection of alarge portion of a lobe or of anentire lobefibrinous inflammationincludeSymptomscough,afever and production of “rusty"图8-10大叶性肺炎（X-Bay）sputumFig8-10 Lobar pneumonta (X-Ray)
Pneumonia Bacteria pneumonia 1. Lobar pneumonia • an acute bacterial infection of a large portion of a lobe or of an entire lobe • fibrinous inflammation • Symptoms include a cough, fever and production of “rusty” sputum
Etiologystreptococcus-pneumonia,pathogens:pneumobacillusinducing factors: cold, excessive tired, anethesiaPathogenesisbacteria :alveoliproliferate, capillarydilate, serious exudateskohn's poresspreading → entire lobe
Etiology pathogens： streptococcus-pneumonia, pneumobacillus inducing factors: cold, excessive tired, anethesia Pathogenesis bacteria alveoli proliferate , capillary dilate, serious exudates kohn’s pores spreading entire lobe
Pathologic changes(1)congestion stage:1st-2nd daysthe outpouring of a protein-rich exudateintoalveolar spaces and rapid proliferation of bacteria.heavy, boggy, redgrossLMalveolar wall: cap. dilate congestionalveolar space: proteinaceous edema fluid, fewneutrophils, RBC, and numerous bacteria
Pathologic changes （1）congestion stage：1st-2nd days the outpouring of a protein-rich exudate into alveolar spaces and rapid proliferation of bacteria. gross heavy, boggy, red LM alveolar wall: cap. dilate congestion alveolar space: proteinaceous edema fluid, few neutrophils, RBC , and numerous bacteria