Sunday, August 12, 2012

Case of the Week 220

The following were submitted for parasitic identification.  The patient is a 30 year old woman with no travel history outside of the United States. The objects measure 7 cm in maximum length.

Identification?

14 comments:

MericaDiagnogen said...

Adult round worm; may adult Toxocara round worm.

Cesar Barros said...

My bet on (male) Ascaris lumbricoides.

Greeting from Brazil!

Eagleville said...

Likely to be Ascaris. I have seen this in families using pig manure on the vegetable garden. I'm not a taxonomist so I don't know if A. suum still holds.

Anonymous said...

Don't think this is a worm at all, looks like a sprout to me, could be taugé.
Ascaris is much smoother and doesn't have the curves at the end.
You also see all kinds of dents in the body.
The tail should be pointy.

Anonymous said...

A.suum looks exactly like A.lumbricoides.
At RIVM Bilthoven (Netherlands) they even try to prove they are one and the same species by moleculair techniques

Kathy said...

Too short for Ascaris, the length is okay for Toxacara but the ends aren't right. I say artifact.

Anonymous said...

Artifact

Matthew Rollosson said...

They look too crunchy to be worms. I'll go with sprouts.

Anonymous said...

The size and morphology is consistent with bean sprouts, most likely of the mung bean Phaseolus aureus.

Florida fan

Anonymous said...

Ascaris.

Ada said...

Male adult worm of Toxocara canis or cati.

Anonymous said...

Yup, looks like bean sprouts to me. With their heads pealed off. I bet they were not passed in stool

Anonymous said...

I agree with florida fan. Mung Bean sprouts. Fp Burlington VT.

Johnny V. said...

Definately not Ascaris, probably not even a parasite at all. Should have more info.

greetings from Ghent, Belgium.