Pleural Pneumocystis carinii infection.

Extrapulmonary Pneumocystis carinii infection is a rare occurrence in patients with AIDS. Pleural involvement has been demonstrated in only one case, and this occurred after pneumothorax. This is a case report of pleural pneumocystosis in a patient with AIDS who did not have a pneumothorax.

Listeria monocytogenes: a rare cause of opportunistic infection in the acquired immunodeficiency syndrome (AIDS) and a new cause of meningitis in AIDS. A case report.

A forty-two year-old male homosexual with the acquired immunodeficiency syndrome (AIDS) developed Listeria monocytogenes septicemia and meningitis. The gastrointestinal tract was the likely portal of entry. The patient was treated with intravenous ampicillin with complete and permanent resolution of his listerial infection. Although L. monocytogenes infection has been reported as an uncommon complications of AIDS, we are unaware of Listeria meningitis being previously reported in an AIDS patient. It is hoped that this case report will alert health care workers to the possibility of Listeria infection in AIDS patients, particularly since this infection responds well to readily-available antibiotic therapy. The microbiology, epidemiology, clinical, and neurologic aspects of listerial infection and general aspects of the acquired immunodeficiency syndrome are discussed.

Silo-Filler's disease.

The effects of oxides of nitrogen inhalation are reported in a 21-year-old gardener exposed to silage gas. Initial nausea, cough and fever remitted, but respiratory failure developed 3 weeks later. Roentgenograms and lung function studies revealed pulmonary edema, volume restriction, and severely impaired gas exchange. Needle biopsy showed a nonspecific interstitial pneumonia. With steroid therapy all functional parameters except diffusing capacity returned to normal. Failure to inquire about non-occupational activities led to delayed diagnosis. A brief review of toxic effects of nitrogen oxides is presented.