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?

8 comments:

Phil C. said...

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

Anonymous said...

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

Lukus Roberts said...

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.

Anonymous said...

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

Florida fan

Anonymous said...

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

Anonymous said...

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

Anonymous said...

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

Parasite Gal said...

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