Monday, January 21, 2013

Case of the Week 242

The following object was  found in a stool specimen from a 3 year old child.  It measured approximately 5 mm in length.

The following egg was expressed:



Anonymous said...

Hymenolepsis nana?


Pearlie said...

Agree with above. Hymenolepis nana.
The size of the adult parasite would suggest a dwarf tapeworm, which narrows it down to Hymenolepsis nana and diminuta. The H. nana eggs have polar filaments between the two membranes, which I think I see in the egg :)

MicrobeMan said...

Hymenolepis nana it is!

Charo said...

Hymenolepis nana.
The adult size is consistent with nana and diminuta. But what is distinctive between them, is that the egg has polar filaments spread out between the two membranes.

Anonymous said...

Hymenolepis nana.

Florida fan