Acute acalculous cholecystitis complicating an imported case of mixed malaria caused by Plasmodium falciparum and Plasmodium vivax.

A 40-year-old man was admitted with a 6-day history of fever and abdominal pain. His right upper quadrant was tender on palpation. A blood smear revealed trophozoite forms of Plasmodium vivax and Plasmodium falciparum.