Phagocytosed malaria pigment: Difference between revisions
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File:Mp1.jpg|<span style="font-size:90%">Rupturing schizont of ''P.malariae''</ | File:Mp1.jpg|<span style="font-size:90%">Rupturing schizont of ''P.malariae''</span>|link={{filepath:Mp1.jpg}} | ||
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<span style="font-size:90%"> | <span style="font-size:90%">The released pigment is seen as "foreign" material and is recognised and ingested by phagocytes (neutrophils or monocytes) where it appears unchanged in the cytoplasm and visible on thin or thick malaria film preparations. The appearance has considerable specificity and should be regarded as evidence to support malaria infection when found.</span> | ||
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File:Mp2.jpg| | File:Mp2.jpg|<span style="font-size:90%">Thin film: monocyte pigment</span>|link={{filepath:Mp2.jpg}} | ||
File:Mp3.jpg| | File:Mp3.jpg|Thin film: neutrophil pigment</span>|link={{filepath:Mp3.jpg}} | ||
File:Mp4.jpg|Thick film pigment|link={{filepath:Mp4.jpg}} | File:Mp4.jpg|Thick film: neutrophil pigment</span>|link={{filepath:Mp4.jpg}} | ||
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Revision as of 18:37, 20 February 2025
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| Phagocytosis of malaria pigment
The malaria pigment formed by parasites to detoxify the iron contained in the haem portion of digested haemoglobin is an insoluble brown or golden clump or clumps of pigment. Following schizont rupture this insoluble material is released into the circulation. Below is an image of a rupturing schizont, the red cell membrane will soon be lost releasing both merozoites and free pigment.
The released pigment is seen as "foreign" material and is recognised and ingested by phagocytes (neutrophils or monocytes) where it appears unchanged in the cytoplasm and visible on thin or thick malaria film preparations. The appearance has considerable specificity and should be regarded as evidence to support malaria infection when found.
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