Visceral leishmaniasis results from spread of the Leishmania sp. proto
zoa including L. donovani, L. chagasi, and L. infantum throughout the
organs of the reticuloendothelial system. The disease is associated wi
th splenic, hepatic, gastrointestinal, and hematologic manifestations.
A new form of visceralizing leishmaniasis, termed viscerotropic leish
maniasis, was first recognized in Persian Gulf veterans who were infec
ted with L. tropica. Resolution of visceral leishmaniasis requires bot
h appropriate chemotherapy and an adequate cellular immune response. T
hus, there has been a recent increase in visceral leishmaniasis due to
coinfection with HIV and L. infantum in southern European countries.