Microorganisms

Published on 04/03/2015 by admin

Filed under Hematology, Oncology and Palliative Medicine

Last modified 04/03/2015

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21 Microorganisms

Plasmodium species

The following examples are representative of the developmental stages of malaria that can be seen in the peripheral blood. Detailed criteria for identification of species may be found in a parasitology text.

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FIGURE 21–1A Plasmodium falciparum rings (A), including applique form (B), and platelet on RBC (C) (PB ×1000).

(Courtesy Indiana Pathology Images).

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FIGURE 21–1B Plasmodium falciparum rings and crescent (banana-shaped) gametocyte (arrow) (PB ×1000).

(Courtesy Indiana Pathology Images).

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FIGURE 21–1C Plasmodium malariae schizont (with 6 merozoites) (PB ×1000).

(Courtesy Indiana Pathology Images).

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FIGURE 21–1D Plasmodium vivax; growing trophozoite with stippling (PB ×1000).

(Courtesy Indiana Pathology Images.)

Babesia species

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FIGURE 21–2 Babesia microti (PB ×1000).

Babesia species may be confused morphologically with Plasmodium falciparum, but lack of pigment and absence of life cycle stages help differentiate Babesia spp. from P. falciparum

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