Malignant metastatic perirenal schwannoma.

Only seven cases of malignant renal or perirenal schwannomas have previously been reported in the literature. Herein we report the case of a 74-year-old female with a previous history of malignant subcutaneous schwannoma and breast ductal adenocarcinoma who presented with a renal mass that was preoperatively diagnosed as a metastatic schwannoma. This is the first case of malignant perirenal schwannoma of metastatic origin.

Passive transfer of growth-inhibitory antibodies raised against yeast-expressed recombinant Plasmodium falciparum merozoite surface protein-1(19).

Purified rabbit immunoglobulin raised against yeast-expressed recombinant FVO or 3D7 Plasmodium falciparum merozoite surface protein-1 (MSP-1) 19k-D C terminal fragment (MSP-1(19)) was transfused into malaria-naive Aotus nancymai monkeys that were immediately challenged with FVO asexual stage malaria parasites. Control monkeys received rabbit immunoglobulin raised against the sexual stage antigen Pfs25 or Aotus hyperimmune serum obtained from monkeys immunized by P. falciparum infection and drug cure.

Geographic distribution and clinical description of leishmaniasis cases in Peru.

Studies were conducted from 1986 through 1993 to further define the geographic distribution and relative importance of different species of Leishmania as a cause of leishmaniasis in Peru. Patients with a clinical diagnosis of cutaneous and/or mucosal or diffuse cutaneous leishmaniasis were enrolled at the Naval Medical Research Institute Detachment (NAMRID) Laboratory in Lima, the Tropical Disease Clinic at San Marcos University Daniel A. Carrión, the Central Military Hospital, and a Ministry of Health hospital in Cusco, Peru.

Leishmania (Viannia) lainsoni: first isolation in Peru.

Surveys were conducted from 1986 through 1992 to define the etiology and geographic distribution of human leishmaniasis in Peru. Lesion aspirates and skin biopsies were obtained from clinically diagnosed cases of leishmaniasis and tested for promastigotes by standard culture techniques. The isozyme profile of the isolates was determined by the cellulose acetate electrophoresis technique.