In a survey of 100 necropsies on cats, 36 were found to have Hepatozoom sp. schizonts in the myocardium. The schizonts appeared lo he located in the capillary lumen. Two forms of schizonts were seen, one containing peripheral rosettes of merozoite-like formations and the other filled with them, showing a cyst-like structure. No parasites were seen in the peripheral blood, spleen, and lymph nodes.
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