Monday, August 6, 2012

Case of the Week 219

The following were seen in peripheral blood films.  The patient has recently immigrated to the U.S. from Southeast Asia. (CLICK ON IMAGES TO ENLARGE)

Thin blood film, 400x original magnification

Thin blood film, 1000x original magnification

 Thick blood film, 1000x original magnification

 Thick blood film, 1000x original magnification

Identification?
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8 comments:

  1. Phil C.August 6, 2012 at 3:19 PM

    Brugia, malayi vs. timori. Given the cephalic space, would go with malayi.

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  2. AnonymousAugust 6, 2012 at 4:51 PM

    I have a little trouble seeing how far the nuclei go in the tail but I believe they extend all the way which would favor a Brugia species of filariasis, probably B. malayi.
    Bill

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  3. Lukus RobertsAugust 6, 2012 at 7:58 PM

    I cant see the nuclei extendeding all the way to the tip, unless im looking at the sheath...but given the multinucleation, the non extendeding nuclei to the tip and the geography, im going Wucheria bancrofti.

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  4. AnonymousAugust 6, 2012 at 8:10 PM

    Wonderful pictures: Sheathed microfilaria, long cephalic space, terminal nucleus at end of the tail.
    Identification: B. malayii.

    Florida fan

    ReplyDelete
  5. AnonymousAugust 6, 2012 at 9:32 PM

    The pink coloring of the sheath also leads me to think it's Brugia species.

    ReplyDelete
  6. AnonymousAugust 7, 2012 at 4:41 AM

    Filaria with a sheet, nucleus at the end of tail.Head has a long nucleusfree part.
    Geography SE Asia.
    Conclusion:Bruggia malayi

    ReplyDelete
  7. AnonymousAugust 7, 2012 at 4:49 AM

    btw. did you messure the microfilaria.
    Wuchereria sp.are usualy longer then Brugia sp.

    ReplyDelete
  8. ParasiteGalAugust 7, 2012 at 12:17 PM

    I forgot to mention that they measured approximately 200 to 230 microns in length.

    ReplyDelete