Friday, March 4, 2011

Cystic Bronchiectasis

Lower lobes:
  • Viral infection: In children
  • Primary ciliary dyskinesia: 50% associated with situs inversus (Kartagener syndrome)
  • Immunodeficiency: For example, agammaglobulinemia
  • Williams-Campbell syndrome: Deficiency in cartilage of the third- to sixth-order bronchi. Usually presents in childhood with coughing and wheezing and recurrent pneumonias. Expiratory CT may reveal collapse of bronchi with distal air trapping and normal-caliber trachea and central bronchi.
  • Tracheobronchomegaly: Also known as Mounier-Kuhn syndrome. Rare congenital abnormality of the trachea and main bronchi.
Upper lobes, symmetric:
  • Cystic fibrosis:
Upper lobes, asymmetric:
  • Allergic bronchopulmonary aspergillosis:
  • Tuberculosis:
  • Endobronchial tumor:
  • Bronchial atresia:

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