• Recurrent sinus infections in a young patient: think hereditary disorders (primary ciliary dyskinesia, cystic fibrosis, immune deficiencies) in patients with relevant family history
  
  Sarcoidosis on CT
  • Adenopathy: "1,2,3 pattern"
    • Position 1: paratracheal
    • Positions 2 and 3: perihilar
  • Nodules: small, in vascular distribution, upper lobe predominant
  
  See cavitary nodules concerning for Actinomyces infection?
  • Risk factors: Alcoholics, patients with poor dentition, patients with high aspiration risks
  • May see very aggressive spread of infection in facial area
  
  See cavitary nodules concerning for tuberculosis?
  • Basilar lesions are almost always associated with primary pulmonary tuberculosis
  • Apical lesions tend to be sequelae of reactivation
  
  Cavitary nodules are most common manifestation of pulmonary disease on chest imaging!
  
  

  Posted 05/30/17 11:59:23 AM by Iheanacho (Obi) Emeruwa

Created by Christopher Kelly

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