Saturday, February 11, 2017

Case of the Week 434

This week's case is another simple identification. The following structures were seen in stool of a young child.






What are these structures?

11 comments:

Anonymous said...

Entorobius vermicularis?... Colorless Egg, oval, slightly flattened on one side.

Nate said...

I was thinking the same thing, but aren't pin worm eggs usually found externally attached near the anus (found with scotch tape test and not a stool sample).

Anthony Rochester said...

Yep, Enterobius/pinworm. They are found on the skin around the anus but can also be seen in stools.

Sugar Magnolia said...

Enterobius vermicularis it is!

These little buggers can be found in stool, although the best method of recovery is by pinworm paddle (scotch tape preparation). Having said that, I haven't had a request for a pinworm prep in ages. Seems they are falling out of fashion? Has anyone had the same experience at their facility?

Anonymous said...

Sweetie,
Pinworms certainly are still around. Definitely the best recovery and at times most striking is the anal/perianal impressions since we can see adult worms as well as ova, but they can be found in stool concentrates as well.
We do have a large number of retirement facilities in Florida. In the old days, the retirees are "de-wormed" (sounds a bit dis-respectfull) given anti-helminths on a periodic basis to prevent pinworm infections from spreading in these facilitites. These days, this approach has been suspended, the patient can only be treated when clinically diagnosed.
Economical and sound approach, yet we receive a dozen or so samples at times from these institutions and about one third of them will contain the pinworm.
Little children still get pinworm infection. These children are generally generous, sharing their food to friends or class mates and their pinworm as well.
Florida Fan

Kathy Murray Leisure, MD said...

Last pinworm infestation I treated in Massachusetts came from a Mexican-American retiree around 2013, who returned to Mexico City frequently to visit family for months at a time. On one return trip with the children and grandchildren, the grandparent returned with itching anus and visible pinworms. Easily treated.

Dario Campese said...

enterobius vermicularis

Anonymous said...

Enterobius vermicularis

Anonymous said...

Enterobius egg. Indeed a rare find in a stool sample.
They look really different here than from a scotch tape (Graham test), can't see the larva inside.
In these cases, sometimes, you can spot adult female worms in the stool whem processing.

-HLCM Fan

Anonymous said...

Looks like pinworm

Kenji said...

This is ova of Enterobius vermicularis