bile fluid cytology from 82 year old korean male patient
what is your diagnosis for this parasite?
Dear Dr Yosep Chong,
These are eggs of trematodes, most likely a species of Opisthorchiidae. Maybe it is Clonorchis or Opisthorchis, species endemic in Asia. The measurements of the eggs are important for the specific identification. Unlike Fasciola, these parasites produce small eggs that already contain a developed miracidium.
Best regards,
Hudson
Dear Dr Yosep Chong,
Undoubtedly, these are the eggs of Clonorchis or Opisthorchis, as dear Hudson said. And to differentiate the two species, you must rely on the morphometric characteristics of eggs.
First, these are wonderful images, especially that one which precedes the last image.
Yes, I think it is a trematode operculated mature egg. Operculated egg could also be a cestode egg, Diphylobothrium latam, but immature. The miracidium in the mature eggs are expected to hatch in water. Did the miracidium spontaneously hatch in this stool specimen?
Do you have any more details about the patient, complaints, epidemiological setting or any travel history, the specimen and its storage, or the size of the found objects?
I think it is Clonorchis eggs. It is very common in Korea and cause liver carcinoma. you better extract genomic DNA and do the PCR using genus or species specific primers. Some primer names that can be used are FH3 and FH5 (CO1), 3S and 28A (ITS2) These primers are not species specific, and you have to do the DNA sequencing to confirm the species.
They are Opisthorchiidae eggs (eggs of Clonorchis or Opisthorchis spp.). Adults are parasites of the bile ducts and Clonorchis sinensis and Opisthorchis spp. are very common in Asia countries among people who feed of infected raw fish freshwater.
They are Opisthorchiidae family eggs, these parasites are endemic in Asian southeast, over all in korea and China, look at the operculum and the egg size.
They look like Clonorchis or Opisthorchis spp to me. They are common in Korea and may be found in bile ducts.
It doesn't look like a Clonorchis egg. These eggs usually have a protuberance in the opposite side of the operculum. And in general should have a flower-vase shape.
What is your measures? iT IS IMPORTANT! I Think like Alicia. Maybe is it.
This is either Clonorchis sinensis or Opistorcus viverini (clinic, size will help you to identification).
Dear Dr Y Chong
I'm according with Dr H A Pinto they're like opisthorchiid eggs.
Yours
Marcelo Knoff
Agree with the comments. The clinic sign referred (fluid bile) close the circle
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