title: [Spontaneously healed P. carinii pneumonia in the course of steroid therapy for interstitial pneumonia--many trophozoites in bronchoalveolar lavage].
abstract: A case in which P. carinii was observed in bronchoalveolar lavage fluid during steroid therapy for interstitial pneumonia in a 63-year-old man is reported, he had received steroid therapy for interstitial pneumonia of unknown origin. Three weeks later, he developed acute pneumonia with Streptococcus pneumoniae, and simultaneously P. carinii was detected in the bronchoalveolar lavage fluid. Both the pneumonic shadows and P. carinii disappeared following intravenous infusion of penicillin and rapid reduction of steroid. Electron microscopic analysis of P. carinii demonstrated numerous tubular expansions and endogenies of P. carinii, suggesting that P. carinii was growing in the intra-alveolar spaces. Phospholipid analysis demonstrated a transient increase in total phospholipid content during P. carinii pneumonia, suggesting that P. carinii can affect surfactant metabolism.
authors.affiliation: First Department of Internal Medicine, Yamagata University School of Medicine, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Sato
authors.forename: A
authors.initials: A
authors.lastname: Suwabe
authors.forename: K
authors.initials: K
authors.lastname: Osanai
authors.forename: Y
authors.initials: Y
authors.lastname: Kudo
authors.forename: S
authors.initials: S
authors.lastname: Kato
authors.forename: H
authors.initials: H
authors.lastname: Takahashi
authors.forename: J
authors.initials: J
authors.lastname: Higuchi
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
authors.forename: H
authors.initials: H
authors.lastname: Tomoike
mesh_terms: D001992:Bronchoalveolar Lavage Fluid / Q000382:microbiology*; D003907:Dexamethasone / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011010:Pneumocystis / Q000254:growth & development / Q000302:isolation & purification*; D011020:Pneumonia, Pneumocystis / Q000382:microbiology*; D011239:Prednisolone / Q000627:therapeutic use*; D011658:Pulmonary Fibrosis / Q000188:drug therapy*; D012075:Remission, Spontaneous
chemical_list: D003907:Dexamethasone; D011239:Prednisolone