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Mycoplasma Pneumonia (n.)
1.(MeSH)Interstitial pneumonia caused by extensive infection of the lungs (LUNG) and BRONCHI, particularly the lower lobes of the lungs, by MYCOPLASMA PNEUMONIAE in humans. In SHEEP, it is caused by MYCOPLASMA OVIPNEUMONIAE. In CATTLE, it may be caused by MYCOPLASMA DISPAR.
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Mycoplasma Pneumonia (n.) (MeSH)
C01.252.400.610.610.760, C01.252.620.500, C08.381.677.540.500, C08.730.610.540.500, Pneumonia, Mycoplasma (MeSH), Pneumonia, Primary Atypical (MeSH)
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Mycoplasma Pneumonia (n.) [MeSH]
Wikipedia
Mycoplasma pneumonia | |
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Classification and external resources | |
ICD-10 | B96.0 |
ICD-9 | 483.0 |
MedlinePlus | 000082 |
eMedicine | emerg/467 |
MeSH | D011019 |
Mycoplasma pneumonia (also known as "walking pneumonia" because its patients can sometimes continue to walk about while suffering from its symptoms) is a form of bacterial pneumonia that is caused by the bacteria species Mycoplasma pneumoniae.
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Mycoplasma pneumoniae is spread through respiratory droplet transmission. Once attached to the mucosa of a host organism, M. pneumoniae extracts nutrients, grows and reproduces by binary fission. Attachment sites include the upper and lower respiratory tract, causing pharyngitis, bronchitis, and pneumonia. The infection caused by this bacterium is called atypical pneumonia because of its protracted course and lack of sputum production and wealth of extra-pulmonary symptoms. Chronic mycoplasma infections have been implicated in the pathogenesis of rheumatoid arthritis and other rheumatological diseases.
Mycoplasma atypical pneumonia can be complicated by Stevens–Johnson syndrome, hemolytic anemia, encephalitis, or Guillain-Barré syndrome.
M. pneumoniae infections can be differentiated from other types of pneumonia by the relatively slow progression of symptoms. A positive blood test for cold-hemagglutinins in 50-70% of patients after 10 days of infection (cold-hemagglutinin-test should be used with caution or not at all, since 50% of the tests are false-positive), lack of bacteria in a gram-stained sputum sample, and a lack of growth on blood agar.
Second-generation macrolide antibiotics (e.g., erythromycin), doxycycline, and second-generation quinolones are effective treatments.
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