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Ring forms: Difference between revisions

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At the earliest stage of red cell infection parasites of all species have the form of a "ring". Distinction between species at this stage may not be easy (or even possible). However as the parasite mature and develop differences between species become more apparent. In some species the ring appearance is maintained until late stages of maturation, in others there is loss of a typical ring appearance. The different appearances of rings (or indeed their loss) can be very useful in identifying the different malaria species. For detailed illustration of maturing trophozoites [[Trophozoites: diagnostic guide|see this link]]:
At the earliest stage of red cell infection parasites of all species have the form of a "ring". Distinction between species at this stage may not be easy (or even possible). However as the parasite mature and develop differences between species become more apparent. In some species the ring appearance is maintained until late stages of maturation, in others it is lost progressively as they mature.  
 
The different appearances of rings (or indeed their loss) can be very useful in identifying the different malaria species. For detailed illustration of maturing trophozoites [[Trophozoites: diagnostic guide|see this link]]:


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Revision as of 11:11, 13 March 2024


What is a ring form?

The earliest stage following red cell invasion has a typical ting form:

  • a = chromatin dot
  • b = digestive vacuole
  • c = parasite cytoplasm

Description


At the earliest stage of red cell infection parasites of all species have the form of a "ring". Distinction between species at this stage may not be easy (or even possible). However as the parasite mature and develop differences between species become more apparent. In some species the ring appearance is maintained until late stages of maturation, in others it is lost progressively as they mature.

The different appearances of rings (or indeed their loss) can be very useful in identifying the different malaria species. For detailed illustration of maturing trophozoites see this link: