Diseases & Conditions


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Bronchiolitis Obliterans Organizing Pneumonia


Synonyms of Bronchiolitis Obliterans Organizing Pneumonia
  • No synonyms found

Disorder Subdivisions

  • No synonyms found


General Discussion
Bronchiolitis obliterans organizing pneumonia (BOOP) is a rare inflammatory lung disorder. Symptoms of BOOP vary greatly from case to case and may include a persistent cough, flu-like illness, and difficult breathing upon exertion (dyspnea). The term bronchiolitis obliterans refers to the accumulation of masses or plugs of fibrous, granulation tissue that forms in the small airway tubes of the lungs (bronchioles) blocking (obliterating) the flow of air. Organizing pneumonia refers to the peculiar, distinct organization of the cells of the air sacs (alveoli) and air ducts (alveolar ducts) and accompanying in inflammation of the lungs (pneumonia). Individuals with BOOP experience inflammation of the bronchioles and air sacs simultaneously, which distinguishes it from other similar inflammatory lung disorders.

Although several different known causes of BOOP have been identified, most cases occur for no known reason (idiopathic). Idiopathic BOOP may also be called cryptogenic organizing pneumonia. Some researchers prefer the use of COP to avoid confusion with other lung disorders with similar names. The term cryptogenic denotes that the cause of the disorder is unknown. Other researchers prefer the term BOOP because it the most recognized term for the disorder.

Organizations related to Bronchiolitis Obliterans Organizing Pneumonia
  • American Lung Association
    61 Broadway, 6th Floor
    New York NY 10006
    Phone #: 212-315-8700
    800 #: 800-586-4872
    e-mail: N/A
    Home page: http://www.lungusa.org
  • NIH/National Heart, Lung and Blood Institute Information Center
    P.O. Box 30105
    Bethesda MD 20824-0105
    Phone #: 301-592-8573
    800 #: --
    e-mail: nhlbiinfo@rover.nhlbi.nih.gov
    Home page: N/A



For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html