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a genus of yeastlike fungi. P. cari´nii is the causative agent of interstitial plasma cell pneumonia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A fungus of the Ascomycetes class that has morphologic similarities to the protozoa. Pneumocystis carinii causes pulmonary infection in rats.
Farlex Partner Medical Dictionary © Farlex 2012


(no͞o′mə-sĭs′tĭs, nyo͞o′-)
Any of a group of fungi of the genus Pneumocystis, especially P. jirovecii, which causes pneumonia in immunocompromised individuals.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


A fungus of the Ascomycetes class that has morphologic similarities to the protozoa.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
En 1988, con estudios moleculares se determino el Pneumocystis como miembro del reino fungi.
[2.] Dohn MN, Baughman RP, Vigdorth EM, Frame DL (1992) Equal survival rates for first, second, and third episodes of Pneumocystis carinii pneumonia in patients with the acquired immunodeficiency syndrome.
Gill, "Development and evaluation of a rapid and simple procedure for detection of Pneumocystis carinii by PCR," Journal of Clinical Microbiology, vol.
Evaluation of loop-mediated isothermal amplification assay for the detection of Pneumocystis jirovecii in immunocompromised patients.
DNA extraction and PCR amplification of Pneumocystis jirovecii dihydropteroate synthase gene
Molecular epidemiology linking multihospital clusters of opportunistic Pneumocystis jirovecii pneumonia.
Comparative yield of different respiratory samples for diagnosis of Pneumocystis carinii infections in HIV seropositive and seronegative individuals in India.
In the nonbiologics group, lower lymphocyte counts were associated with higher [beta]-D-glucan levels (Figure 3), implying that the compromised immune system of patients in the nonbiologics group was related to the growth of Pneumocystis jirovecii.
In this cohort, the absence of ground glass opacities on chest CT had a perfect negative predictive value for Pneumocystis pneumonia (i.e., the presence of ground glass was 100% sensitive for PCP).
Jouneau et al., "Incidence of Pneumocystis jiroveci pneumonia among groups at risk in HIV-negative patients," American Journal of Medicine, vol.