Plasmodium species (continued)
P. falciparum
Rarely seen, poor prognosis.
SIZE OF MEROZOITES: Very small.
NUMBER OF MEROZOITES: 8 to 32 mcm in random order.
SHAPE: Fills about 1/2 of the RBC.
HEMOZOIN PIGMENT: Black; peripheralclump.
INFECTED ERYTHROCYTE: Normal.
Figure 2-22. Mature schizonts, Plasmodium. (concluded)
NOTE:
See Figures 1-6, 2-6, 3-6 in Appendix C for additional illustrations.
GAMETOCYTES
DIFFERENTIATION: No vacuoles present.
MACROGAMETOCYTE: Dark blue and compact cytoplasm; peripheral and compact
chromatin.
MICROGAMETOCYTE: Light blue and diffused cytoplasm; thready chromatin.
P. vivax
SHAPE: Oval.
CYTOPLASM: Pale blue.
CHROMATIN MASS: Medium to large.
SIZE: Fills the entire RBC.
HEMOZOIN PIGMENT: Gold; abundant; scattered.
INFECTED ERYTHROCYTE: Enlarged; pale; Schuffner's granules.
Figure 2-23. Gametocytes, Plasmodium. (continued)
MD0842
2-27
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