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Respiratory system



tracheobronchopathia osteochondroplastica

osteocartilaginous nodules within submucosa of trachea +/- bronchi
  • arise from cartilage rings
    • posterior membranous trachea spared (DDx: amyloidosis)
  • incidence debated; 1/3000 in autopsy series
  • etiology unknown (Ca & P normal), but most accepted theory is an exaggerated response to chronic inhalation of irritants
  • most cases in adults > 50 yrs old (youngest pt age 2 yrs)
  • M:F = 3:1
  • dyspnea, productive cough, hemoptysis


  • CXR: nodules in trachea +/- calcification
  • CT: as above, but more sensitive to calcification and better at demonstrating lack of posterior tracheal involvement

J Keith Thompson, MD  -  13 November 1997
Last updated:  1 October 2013


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broncho-pulmonary sequestration


Copyright © 2013, Charles E. Kahn, Jr.