Pneumonitis or pulmonitis is an inflammation of lung tissue. Many factors can cause pneumonitis, including breathing in animal dander, aspiration (inhaling small food particles or vomit "down the wrong pipe"), and receiving radiation therapy to the chest.
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Pneumonitis was listed as the one of the top 15 leading causes of death (at number 15) in the United States as of 2010, overtaking homicide, which dropped off the list. This was due to a number of factors, including an increase in the population of people over 75, for whom pneumonitis is a common cause of death.
- Viral infection. Measles can cause severe pneumonitis, and ribavirin has been proposed as a possible treatment. CMV is another cause.
- Radiation therapy
- Inhaling chemicals, such as sodium hydroxide
- Adverse reaction to medications
- Hypersensitivity to inhaled agents
- Inhalation of spores of some species of mushroom (bronchoalveolar allergic syndrome)
- Mercury exposure
- Overexposure to chlorine
- Bronchial obstruction (obstructive pneumonitis or post-obstructive pneumonitis)
- Ascariasis (during parasite migration)
- Hypersensitivity pneumonitis, also known as extrinsic allergic alveolitis (EAA)
- "pneumonitis" at Dorland's Medical Dictionary
- Stedman's medical dictionary. (28th ed.). Philadelphia: Lippincott Williams & Wilkins. 2006. ISBN 978-0-7817-6450-6.
- Mayo Clinic
- STOBBE, MIKE (12 January 2012). "Homicide drops off US list of top causes of death". Yahoo News/Associated Press. Retrieved 12 January 2012.
- "pneumonia" at Dorland's Medical Dictionary
- Patient UK
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