Monday, June 25, 2012

Case of the Week 213

The following were seen on a stool parasite examination (O&P) from a 4 year old child.  No travel history outside of the U.S. was reported. 

Identification? 
What is the preferred method of testing for this organism?

(CLICK ON IMAGES TO ENLARGE)


8 comments:

Malassezia said...

Looks like Enterobius vermicularis ova. Normally would test with scotch tape - apply first to anus, then to slide.

MericaDiagnogen said...

I am very close to Enterobius vermicularis Ova. Graham’s Scotch tape method. In this procedure, sticky cellophane tape applied to the anal area of the patient collects ova, which are then pressed onto a microscope slide and viewed.

Anonymous said...

Enterobius vermicularis "pin worm eggs". Use either pinworm paddle or scotch tape; press against the outside of the anus while child is sleeping. press onto microscope slide and view under microscope

Eagleville said...

Unanimous consent that it's E. vermicularis. Keep in mind that most "cellophane" tape these days is frosted which makes the microscopic a bit more challenging. Specify "clear" tape to expedite the process.

Anonymous said...

Pinworm eggs- Enterobius vermicularis
Characteristic shape: slightly flattened on one side
SWUBE prep or adhesive tape prep

Anonymous said...

Agree with all of the above. Nice pictures of E. vermicularis. Scotch tape test is the test of choice.

Anonymous said...

Enterobius vermicularis eggs- poor little thing must be itching like crazy!

Musigny1955 said...

As others have said classic Enterobius vermicularis with asymmetric oval eggs... clear tape on the perianal region is the collection method of choice.