Under the dissecting microscope, the following were seen:
(low power)
(higher power)
Our clinical microbiology fellow skillfully dissected a few of these arthropods out of the "fuzz" and mounted them on a slide. Here is a representative specimen. He also called the ordering physician to
Identification?
How would you sign this case out? (Is this a human parasite?)
10 comments:
Some sort of mite
Its a mite...Is there a way you can differentiate a dust mite from the
s.scabies?
Too big for dust mite - and not a scabies mite... may be Ornithonyssus bacoti(which is of relevance for human infection)? Or may be Ornithonyssus sylviarum??
Or perhaps Liponyssides sanguineus - which vectors rikettsial pox - but I am not really sure of what that mite looks like...
It's a mite, totally innoscent in my oppinion
dust mite
Mite.Where was specimen collected from? Any bites found on humans?Rodent and bird mites do bite humans.
Mites. Dermatophagoides sp.
Florida fan
Thanks to everyone for leaving the comments! Dust mites are a good consideration, but the mites shown here are much too large to be dust mites (not easily visible with a dissecting microscope) and have very distinctive pointed appendages. I'll do my best to show you some in a future case. Stay tuned!
I thought I saw 8 legs for a second which made me think is was an odd spider for a second, then i was thinkin "spider mite". I don't know if it's the right size, but here's a picture of a red spider mite that looks very similar.
http://www.freeimagehosting.net/upload.php
I odn't know if the ones in your picture are albino or if I'm just completely wrong. It would be nice to find out though.
The final identification for all of the entomologists out there was Ornithonyssus sylviarum, the Northern Fowl Mite. Thank you for all of your comments!
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