interstitial plasma cell pneumonia meaning

Noun: interstitial plasma cell pneumonia

Pneumonia occurring in infants or in persons with impaired immune systems (as AIDS victims)
- pneumocytosis, pneumocystis pneumonia, pneumocystis carinii pneumonia

[Medicine]
A pulmonary disease in humans occurring in immunodeficient or malnourished patients or infants,characterized by DYSPNEA,tachypnea,and HYPOXEMIA. Pneumocystis pneumonia is a frequently seen opportunistic infection in AIDS. It is caused by the fungus PNEUMOCYSTIS JIROVECI. The disease is also found in other MAMMALS where it is caused by related species of Pneumocystis.