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Biomedical subjects

C Singer

Publications and source records attributed to C Singer.

45 records · Page 3Linked to original sources
PubMed1975

Imported mucocutaneous leishmaniasis in New York City. Report of a patient treated with amphotericin B.

A case of mococutaneous leishmaniasis in a patient referred to Memorial Sloan-Kettering Cancer Center, New York, with a presumptive diagnosis of lethal mid-line granuloma is described. The patient had lived in Bolivia and had been treated with antimony during and after which his mucosal lesions progressed. These lesions completely healed with 971 mg of amphotericin B. Mucocutaneous leishmaniasis is endemic in many areas of Central and South America and may occur in patients in the United States who have lived in or traveled to these areas. Organisms may be difficult to identify, and multiple biopsies and cultures may be necessary. The use of amphotericin B for the treatment of leishmaniasis is reviewed. It is an effective alternative to antimony therapy, and in some cases resistant to antimony, it may be the drug of choice.

Adult↗
PubMed1975

Pneumocystis carinii pneumonia: a cluster of eleven cases.

An unusual cluster of 11 patients with Pneumocystis carinii pneumonia occurred in a 3-month period at Memorial Hospital, New York. Ten of the 11 patients had lymphoma or leukemia. In 7 patients, corticosteroid therapy was decreased or stopped shortly before pneumocystis pneumonia was diagnosed. The pediatric patients had extensive contact in the outpatient department, and three of them had roomed together, suggesting the possibility of man to man transmission. Tree of 4 adult patients with Hodgkin's disease and pneumocystis pneumonia had the same physician. This physician had an indirect immunofluorescent titer of 1:16, as did an infectious disease resident involved in the care of 6 patients. Three of 9 patients tested showed indirect immunofluorescent titers of 1:16 or above, with rising or falling titers on serial specimens. Although definitive evidence of communicability was not established, patients with suspected or proved pneumocystis pneumonia are now isolated in this hospital.

Adolescent↗
PubMedDate not supplied

Noncardiogenic pulmonary edema and pulmonary fibrosis in falciparum malaria.

Noncardiogenic pulmonary edema is an uncommon but serious complication of falciparum malaria. A case of fatal noncardiogenic pulmonary edema complicating falciparum malaria is presented in which the unfavorable outcome resulted from rapidly developing pulmonary fibrosis, documented through open-lung biopsy. Possible mechanisms of lung injury in falciparum malaria include: impaired perfusion and tissue hypoxia in the pulmonary microcirculation caused by reduced effective circulating volume; abnormal autonomic effects on the lung resulting from reduced blood flow in the central nervous system; immunologic injury to alveolar-capillary structures; and morphologic changes in the surface membranes of infected erythrocytes leading to sequestration of parasitized erythrocytes in vascular beds and pulmonary capillary damage. That pulmonary involvement in falciparum malaria is usually associated with high-grade parasitemia, concurrent cerebral involvement, and delay in institution of antimalarial therapy emphasizes the importance of early diagnosis and treatment.

Biopsy↗
PubMedDate not supplied

Case report: Antemortem diagnosis of central nervous system strongyloidiasis.

Strongyloidiasis is usually a benign illness confined to the gastrointestinal tract. However, dissemination (hyperinfection syndrome) may occur, particularly in patients with impaired cell-mediated immunity. The diagnosis of hyperinfection syndrome is often made postmortem, and mortality is high, even when the disease is recognized during life. Central nervous system involvement with Strongyloides stercoralis has previously been recognized in only a few cases at postmortem examination, and in one case antemortem. We describe a patient with disseminated strongyloidiasis in whom central nervous system involvement was diagnosed antemortem. This patient developed multiple bacterial and fungal systemic and central nervous system infections as a complication of disseminated strongyloidiasis. The natural history of the disease in man, factors predisposing to dissemination, immunologic aspects of helminthic infection, and treatment modalities are discussed.

Animals↗