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BRONCHIECTASIS - Coggle Diagram
BRONCHIECTASIS
MORPHOLOGY(MACRO)
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Thickened bronchial walls>by fibrosis, inflammatory oedema & heavy infiltrate of lymphocytes & plasma cells
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Mucosa>>polypoid hyperplasia, squamous metaplasia/ulceration
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DEFINE
Clinically: foul breath& sputum, finger clubbing
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PATHOGENESIS
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Bronchial epithelium damage>>2ndary bacterial colonisation>↓ciliary clearance>>↑continued infection& inflammation
AETIOLOGY
Obstruction>>Tumor, foreign body,hilar node(TB lymphadenopathy>>RM lobe)
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Infection>>Measles,adenovirus,post-pneumonic,esp. S.pneumoniae
COMPLICATIONS
Distant>>Metastatic abscesses(esp.brain), amyloidosis
Local>>Lung abscess,empyema , Cor pulmonale