DIFFERENTIAL DIAGNOSIS OF MALARIA PARASITE.ppt

8/11/2019 DIFFERENTIAL DIAGNOSIS OF MALARIA PARASITE.ppt

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DIFFERENTIALDIAGNOSIS OF

MALARIA PARASITE


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P. ovaleP. vivaxP. malariaeP. falciparum

Thick ring, 1 chromatin

dot.


dot.


dot.

Fine ring, multiple

infection. 1 to 2

small chromatin dots

Young trophozoite

Round, compact.Irregular, amoeboid.Round with central

chromatin and band

forms, pigment

distinct

Ring enlarged slightly

irregular.

Mature trophozoite

8 to 14 merozoites

arranged irregularly.

12 to 18 merozoites

arranged irregularly.

8 to 10 merozoites often

arranged as a rosette

pigment generally in

centre.

Rarely seen in peripheral

blood., 18 to 32

merozoites.

Schizont

Oval or rounded, male

diffuse chromatin.


diffuse chromatin.


diffuse chromatin.

Crescentic male reddish

with diffuse

chromatin, femalebluish with compact

chromatin.

Gametocyte

Enlarged.Enlarged.Unchanged or smaller.Unchanged.Size of red blood cell

Often irregular with

jagged edges.

Unchanged.Unchanged.Sometimes irregular and

crenated

Shape of red blood cell


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YOUNG

TROPHOZOITE


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P. fal icparum

Fine ring, multiple infection, 1

to 2 small chromatin dots


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P. malariae

Thick ring, 1 chromatin dot.


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P. v ivax



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P. ovale



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MATURE

TROPHOZOITE


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P. fal icparum

Ring enlarged, slightly irregular


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P. v ivax

Irregular, amoeboid


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P. ovale

Round, compact


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SCHIZONT


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P. fal icparum

Rarely seen in peripheral blood,

18 to 22 merozoite


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P. malariae

8 to 10 ,merozoites often

arranged as a rosette, pigment

generally in centre


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P. v ivax

12 to 18 merozoites arranged

irregularly


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P. ovale

8 to 14 merozoites arranged

irregularly


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GAMETOCYTE


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P. fal icparum

Crescentic, male reddish with

diffuse chromatin, female bluish

with compact chromatin


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P. malariae

Oval or rounded, male diffuse

chromatin


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P. v ivax


chromatin


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P. ovale


chromatin


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SIZE OF RED CELL

P f l i


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P. fal icparum

Unchanged


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P l i


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P. malariae

Unchanged or smaller


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P i


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P. v ivax

Enlarged


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P l


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P. ovale

Enlarged


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SHAPE OF RED CELL

P f l i


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P. fal icparum

Sometimes irregular and crenated


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P vivax


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P. v ivax

Unchanged


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P ovale


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P. ovale

Often irregular with jaggededges


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DIFFERENTIAL DIAGNOSIS OF MALARIA PARASITE.ppt

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