Indigenous Plasmodium falciparum malaria in Queens, NY.

Cryptic/sporadic malaria is rare in the United States. We describe a patient who developed malaria in New York City without any known contact with, or travel to, a malaria-endemic area. The patient presented with symptoms of gastroenteritis.

Bacterial infections in HIV-infected patients.

Although the original opportunistic pathogens described in AIDS were protozoal and fungal organisms, bacterial infections are now recognized with increased prevalence and altered expression in patients with HIV infection. Especially since populations outside of North America and populations of i.v.

Gastrointestinal histoplasmosis in HIV infection: two cases of colonic pseudocancer and review of the literature.

Primary gastrointestinal infection is an uncommon manifestation of histoplasmosis. It is almost always associated with disseminated disease and/or an immunocompromised host. The ileum and cecum are the most common sites involved.

Anaerobic mediastinitis complicating median sternotomy.

Two cases of mediastinitis and bacteremia caused by Bacteroides species following median sternotomy are described. In both patients, purulent sternal drainage and signs of systemic toxicity led to the diagnosis. Surgical reexploration and administration of appropriate antibiotics effected clinical cure.