Schüffner's dots - Revision history

Admin at 11:44, 3 April 2024

2024-04-03T11:44:34Z

← Older revision		Revision as of 13:44, 3 April 2024
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	<span style="font-size:80%">The appearance of Schüffner's dots during the develoment of ''P.vivax'' trophozites. These are shown from their earliest detectable form in an early trophozoite that has also begun to increase the size and distort the erythrocyte (A), these are more fully developed at later stages (B) and are highly visible in the amoeboid late trophozoite (C). </span>		<span style="font-size:100%">The appearance of Schüffner's dots during the develoment of ''P.vivax'' trophozites. These are shown from their earliest detectable form in an early trophozoite that has also begun to increase the size and distort the erythrocyte (A), these are more fully developed at later stages (B) and are highly visible in the amoeboid late trophozoite (C). </span>

Admin at 11:43, 3 April 2024

2024-04-03T11:43:35Z

← Older revision		Revision as of 13:43, 3 April 2024
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	<span style="font-size:~~1000~~%">Well formed Schüffner's dots in a trophozoite of ''P.vivax''; note that the dots are far too numerous to count and have a red/purple colour; remeber also that their appearance is highly dependent on the correct staining pH.</span>		<span style="font-size:100%">Well formed Schüffner's dots in a trophozoite of ''P.vivax''; note that the dots are far too numerous to count and have a red/purple colour; remeber also that their appearance is highly dependent on the correct staining pH.</span>
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	<span style="font-size:80%">~~Developing~~ dots</span>		<span style="font-size:80%">The appearance of Schüffner's dots during the develoment of ''P.vivax'' trophozites. These are shown from their earliest detectable form in an early trophozoite that has also begun to increase the size and distort the erythrocyte (A), these are more fully developed at later stages (B) and are highly visible in the amoeboid late trophozoite (C). </span>

Admin at 11:40, 3 April 2024

2024-04-03T11:40:10Z

← Older revision		Revision as of 13:40, 3 April 2024
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	File:Schuf2.jpg\|link={{filepath:Schuf2.jpg}}		File:Schuf2.jpg\|link={{filepath:Schuf2.jpg}}
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	<span style="font-size:80%">Well formed Schüffner's dots in a trophozoite of ''P.vivax''; note that the dots are far too numerous to count and have a red/purple colour; remeber also that their appearance is highly dependent on the correct staining pH.</span>
			<span style="font-size:1000%">Well formed Schüffner's dots in a trophozoite of ''P.vivax''; note that the dots are far too numerous to count and have a red/purple colour; remeber also that their appearance is highly dependent on the correct staining pH.</span>
	<br clear=all>		<br clear=all>

Admin at 11:39, 3 April 2024

2024-04-03T11:39:45Z

← Older revision		Revision as of 13:39, 3 April 2024
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	File:Schuf2.jpg\|link={{filepath:Schuf2.jpg}}		File:Schuf2.jpg\|link={{filepath:Schuf2.jpg}}
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	<span style="font-size:80%">~~Note~~ the appearance ~~of dots~~ is highly dependent on correct staining pH.</span>		<span style="font-size:80%">Well formed Schüffner's dots in a trophozoite of ''P.vivax''; note that the dots are far too numerous to count and have a red/purple colour; remeber also that their appearance is highly dependent on the correct staining pH.</span>
	<br clear=all>		<br clear=all>

Admin at 10:03, 3 April 2024

2024-04-03T10:03:40Z

← Older revision		Revision as of 12:03, 3 April 2024
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	<gallery mode="nolines" widths=250px heights=250px>		<gallery mode="nolines" widths=250px heights=250px>
	File:~~11multiple1~~.jpg\|link={{filepath:~~11multiple1~~.jpg}}		File:Schuf2.jpg\|link={{filepath:Schuf2.jpg}}
	</gallery>		</gallery>
	<span style="font-size:80%">Note the appearance of dots is highly dependent on correct staining pH.</span>		<span style="font-size:80%">Note the appearance of dots is highly dependent on correct staining pH.</span>
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	<gallery mode="nolines" widths=200px heights=200px>		<gallery mode="nolines" widths=200px heights=200px>
	File:~~11multiple2~~.jpg\|A\|link={{filepath:~~11multiple2~~.jpg}}		File:Schuf1.jpg\|A\|link={{filepath:Schuf1.jpg}}
	File:~~11multiple3~~.jpg\|B\|link={{filepath:~~11multiple3~~.jpg}}		File:Schuf3.jpg\|B\|link={{filepath:Schuf3.jpg}}
	File:~~11multiple4~~.jpg\|C\|link={{filepath:~~11multiple4~~.jpg}}		File:Schuf4.jpg\|C\|link={{filepath:Schuf4.jpg}}
	</gallery>		</gallery>

	<span style="font-size:80%">Developing dots</span>		<span style="font-size:80%">Developing dots</span>

Admin at 09:55, 3 April 2024

2024-04-03T09:55:53Z

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 File:11multiple1.jpg|link={{filepath:11multiple1.jpg}}
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-<span style="font-size:80%">The most frequent form - two early trophozoites of ''P.falciparum'' in a single erythrocyte</span>
+<span style="font-size:80%">Note the appearance of dots is highly dependent on correct staining pH.</span>
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 <span style="color:navy>'''Species significance'''</span>
-Most often considered a feature indicating ''P.falciparum'' infection, and is certainly frequent in that species where it can be used to support the diagnosis. However, the form should not considered as specific, and may occur in any species (and is also a frequent finding for babesia parasites).
+These dots are a feature of ''P.vivax'', but are morphologically indistinguishable from the James dots of ''P.ovale''. Distinction between these species must therefore be made based on other diagnostic crieria.
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-<span style="font-size:80%">Double parasites in: late trophozoite of ''P.malaria'' (A) late trophozoite of ''P.vivax'' (B) and late trophozoite of P.ovale (C)</span>
+<span style="font-size:80%">Developing dots</span>

Admin at 09:52, 3 April 2024

2024-04-03T09:52:03Z

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 [[Plasmodium vivax: Morphology|Go Back]]
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-Schüffner's dots (seen in ''P.vivax'') and James' dots (seen in ''P.oale'') are morphologically indistinguishable and often the dots in both species are called "Schüffner's dots". They are however very diffrent from the Maurer's dots and clefts of ''P.falciparum''. Like all parasite structures these dots are formed progressively during trophozoite development, initially appearing as very faint dots before becoming much more intense as the parasites become more mature. Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'')
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-These are frequent red-purple dots in the erythrocyte cytoplasm of cells infected by ''P.vivax'' (like the James' dots seen in ''P.ovale'') that develop from early trophozoite infection as faint dots, then become more obvious in all mature forms. These represent modification of the red cell by the parasite''.
+These are frequent red-purple dots in the erythrocyte cytoplasm of cells infected by ''P.vivax'' (like the James' dots seen in ''P.ovale'') that develop from early trophozoite infection as faint dots, then become more obvious in all mature forms. These represent modification of the red cell by the parasite''. initially appearing as very faint dots before becoming much more intense as the parasites become more mature. Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint dots are very frequent (compare with the sparse Maurer's dots and clefts of ''P.falciparum'')

Admin at 09:43, 3 April 2024

2024-04-03T09:43:41Z

← Older revision		Revision as of 11:43, 3 April 2024
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	Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'')		Schüffner's dots (seen in ''P.vivax'') and James' dots (seen in ''P.oale'') are morphologically indistinguishable and often the dots in both species are called "Schüffner's dots". They are however very diffrent from the Maurer's dots and clefts of ''P.falciparum''. Like all parasite structures these dots are formed progressively during trophozoite development, initially appearing as very faint dots before becoming much more intense as the parasites become more mature. Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'')

Admin at 16:06, 2 April 2024

2024-04-02T16:06:28Z

← Older revision		Revision as of 18:06, 2 April 2024
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			----
			'''Navigation'''</br>
			[[Plasmodium vivax: Morphology\|Go Back]]
			----


	----		{\| class="wikitable" style="border-style: solid; border-width: 4px; color:black"
			\|colspan="1" style = "font-size:100%; color:black; background: FFFAFA"\|<span style="color:navy>'''What are Schüffner's dots?'''</span>

	<gallery mode="nolines" widths="220px" heights="220px" >		<gallery mode="nolines" widths="220px" heights="220px" >

John: Created page with " ---- File:MSc1.jpg|link={{filepath:MSc1.jpg}} File:MSc2.jpg|link={{filepath:MSc2.jpg}} File:MSc3.jpg|link={{filepath:MSc3.jpg}} File:MSc4.jpg|link={{filepath:MSc4.jpg}} Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'')
2023-04-23T14:01:50Z

Created page with " ---- <gallery mode="nolines" widths="220px" heights="220px" > File:MSc1.jpg|link={{filepath:MSc1.jpg}} File:MSc2.jpg|link={{filepath:MSc2.jpg}} File:MSc3.jpg|link={{filepath:MSc3.jpg}} File:MSc4.jpg|link={{filepath:MSc4.jpg}} </gallery> Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'') 
File:MSc1.jpg|link={{filepath:MSc1.jpg}}
File:MSc2.jpg|link={{filepath:MSc2.jpg}}
File:MSc3.jpg|link={{filepath:MSc3.jpg}}
File:MSc4.jpg|link={{filepath:MSc4.jpg}}
</gallery>

Different intensities of cytoplasmic dots, from faint to intense during the development of ''P.vivax''. Note that even when faint the number of dots is high (compare with the Maurer's dots and clefts of ''P.falciparum'')

'''Description'''

These are frequent red-purple dots in the erythrocyte cytoplasm of cells infected by ''P.vivax'' (like the James' dots seen in ''P.ovale'') that develop from early trophozoite infection as faint dots, then become more obvious in all mature forms. These represent modification of the red cell by the parasite''.

'''Species significance'''

These dots are restricted to ''P.ovale'' (but are indistinguishable from the Schüffner's dots of ''P.vivax)''. Note the appearance of dots is highly dependent on correct staining pH.

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