- Mycoplasma pneumonia
Mycoplasma pneumonia 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 whilst suffering from its symptoms) is a form of bacterial pneumonia which is caused by the bacteria species Mycoplasma pneumoniae.
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.
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.
PCR has also been used.
- ^ Waris ME, Toikka P, Saarinen T, et al. (November 1998). "Diagnosis of Mycoplasma pneumoniae pneumonia in children". J. Clin. Microbiol. 36 (11): 3155–9. PMC 105292. PMID 9774556. http://jcm.asm.org/cgi/pmidlookup?view=long&pmid=9774556.
Firmicutes (low-G+C) Infectious diseases · Bacterial diseases: G+ (primarily A00–A79, 001–041, 080–109) BacilliStreptococcusαβ ClostridiaPeptostreptococcus (non-spore forming)Peptostreptococcus magnus MollicutesMycoplasmataceaeErysipelothrix rhusiopathiae (Erysipeloid) Pathology of respiratory system (J, 460–519), respiratory diseases Upper RT
Common cold)Headvocal folds: Laryngopharyngeal reflux (LPR) · Vocal fold nodule · Vocal cord paresis · Vocal cord dysfunction
Lower RT/lung disease
(including LRTIs)acute: Acute bronchitischronic: COPD (Chronic bronchitis, Acute exacerbations of chronic bronchitis, Acute exacerbation of COPD, Emphysema) · Asthma (Status asthmaticus, Aspirin-induced, Exercise-induced) · BronchiectasisInterstitial/
restrictiveBy pathogenBy vector/routeBy distributionBroncho- · LobarOther
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