Spontaneous Splenic Rupture During Acute Parasitemia of Babesia microti

Babesia is a malaria-like protozoan parasite spread by Ixodes ticks primarily from the white- footed deer mouse to humans. Typically it causes subclinical disease, but occasionally causes acute febrile disease with hepatosplenomegaly. We report a case of spontaneous splenic rupture of a 56-yr-old man with acute Babesia microti infection.