Bronchiectasis

Etiology- Cystic fibrosis, Alpha-1 antitrypsin deficiency, selective Ig A deficiency, ABPA, Sjogren syndrome, Kartagener’s syndrome(sinusitis, bronchiectasis, situs inversus, hypomotile cilia), Obstruction(carcinoid tumor), Bacteria(SP, HI, KP, SA, pertussis, TB), Virus(Measles, Influenza, VZV, adenovirus) Presentation- Cough with sputum Pathogen- H.influenza, Pseudomonas, Streptococcus Image- Signet ring sign, dot ring sign, tram tracks, ring shadow Complication- Lung, brain abscess