Pneumocystis Pneumonia

Definition 1

Pneumonia resulting from infection with Pneumocystis carinii, frequently seen in the immunologically compromised, such as persons with AIDS, or steroid-treated individuals, the elderly, or premature or debilitated babies during their first three months. Patients may be only slightly febrile (or even afebrile), but are likely to be extremely weak, dyspneic, and cyanotic. This is a major cause of morbidity among patients with AIDS. (NCI Thesaurus)

Definition 2

A pulmonary disease occurring in immunodeficient or malnourished patients or infants, characterized by dyspnea, tachypnea, and hypoxemia. Pneumocystis carinii pneumonia is a frequently seen opportunistic infection in AIDS. It is caused by the fungus Pneumocystis carinii. (NLM, Medical Subject Headings)

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