Accolé form: Difference between revisions
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(Created page with "---- '''Description''' Accolé forms may also be referred to as "edge" or “appliqué” form, and describes parasites in early or late trophozoites where the parasite appears closely opposed to the edge of the erythrocyte membrane - usually appearing to be flattened against the erythrocyte membrane. IMAGE '''Species significance''' Most often considered to be a feature of p.falciparum infection and can be helpful to indicate this diagnosis (particularly when freq...") |
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'''Navigation'''</br> | |||
[[Plasmodium falciparum: Morphology|Go Back]] | |||
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|colspan="1" style = "font-size:100%; color:black; background: WhiteSmoke"|<span style="color:navy>'''What is a double dot form?'''</span> | |||
Accolé forms may also be referred to as "edge" or “appliqué” form, and describes parasites in early or late trophozoites where the parasite appears closely opposed to the edge of the erythrocyte membrane - usually appearing to be flattened against the erythrocyte membrane. | Accolé forms may also be referred to as "edge" or “appliqué” form, and describes parasites in early or late trophozoites where the parasite appears closely opposed to the edge of the erythrocyte membrane - usually appearing to be flattened against the erythrocyte membrane. | ||
'''Species significance''' | <gallery mode="nolines" widths=250px heights=250px> | ||
File:MFaccole.jpg|link={{filepath:MFaccole.jpg}} | |||
</gallery> | |||
<span style="font-size:80%">Note that the parasite is very closely in contact with the red cell membrane (''P.falciparum'' late trophozoite form with maurer's dots and clefts)</span> | |||
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<span style="color:navy>'''Species significance'''</span> | |||
Most often considered to be a feature of p.falciparum infection and | Most often considered to be a feature of p.falciparum infection and when frequent these appearances are helpful to indicate this species. However, the form is not fully specific and examples may occur in any species. | ||
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'''Additional | <span style="color:navy>'''Additional images'''</span> | ||
- | <gallery mode="nolines" widths=200px heights=200px> | ||
File:MMaccole.jpg|A|link={{filepath:MMaccole.jpg}} | |||
File:MVaccole.jpg|B|link={{filepath:MVaccole.jpg}} | |||
File:MOaccole.jpg|C|link={{filepath:MOaccole.jpg}} | |||
</gallery> | |||
<span style="font-size:80%">Malaria Accolé forms in: early trophozoite of ''P.malarae'' (A) early trophozoite of ''P.vivax'' (B) and ealy trophozoite of ''P.ovale'' (C). Note the differences in parasite and red cell size and shape and the presence or absence of additional dots<span> | |||
Latest revision as of 13:17, 19 March 2024
Navigation
Go Back
| What is a double dot form?
Accolé forms may also be referred to as "edge" or “appliqué” form, and describes parasites in early or late trophozoites where the parasite appears closely opposed to the edge of the erythrocyte membrane - usually appearing to be flattened against the erythrocyte membrane.
Note that the parasite is very closely in contact with the red cell membrane (P.falciparum late trophozoite form with maurer's dots and clefts)
Species significance Most often considered to be a feature of p.falciparum infection and when frequent these appearances are helpful to indicate this species. However, the form is not fully specific and examples may occur in any species. Additional images
Malaria Accolé forms in: early trophozoite of P.malarae (A) early trophozoite of P.vivax (B) and ealy trophozoite of P.ovale (C). Note the differences in parasite and red cell size and shape and the presence or absence of additional dots |
