Identification?
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A parasitologist's view of the world
Welcome to Parasite Case of the Week
Every week I will post a new Case, along with the answer to the previous case. Please feel free to write in with your answers, comments, and questions. Also check out my image archive website at http://parasitewonders.com. Enjoy!
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
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6 comments:
Very nice and clearly defined intestinal caecum. Lips are visible on the worm and the general size would point again to an Anisakidae member. Coughing up and the abdominal pain are helpful clinical correlates as well. Will go with Pseudoterranova considering the intestinal caecum.
Yes, I will go with Marc's identification. The lips are more consistent with Pseudoterranova. The clinical history agrees too.
Florida Fan
Agree with Pseudoterranova sp. The absence of an enlarged ventriculus rules out Contracaecum sp.
Three lips, anteriorly directed intestinal cecum (IC), ventriculus between esophagus and IC, no boring tooth. These characteristics are consistent with L4 Pseudoterronova.
The first photo appears to have numerous spheres looking like nematode eggs on the bottom of the petri dish.
Idzi,
Did you pipet some of those spheres and look at them under a compound scope?
A agree with everyone so far, that the presence of an anterior [b]cecum[/b] and apparent lack of a posterior ventricular appendix, make Pseuoterranova the most likely possibility. Certainly Anisakis proper can be ruled out.
Not sure what those spheres are, but they would not be anisakid eggs; anisakids cannot reach sexual maturity in the human host. The worm presented here is an L3 larva.
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