Creepy Dreadful Wonderful Parasites

Multiple motile small white objects were found in the diaper of an infant.  The specimens were submitted to surgical pathology where they we...

Answer:   Dipylidium caninum proglottids containing numerous egg packets.  Each of the small structures shown in the low power images is a (...

This week's case is also generously donated by Florida Fan, who has just had a run of really great cases!  The specimen is a particularl...

Answer:   Giardia duodenalis (a.k.a. G. lamblia, G. intestinalis ) trophozoites. This was a very impressive case given the large number of...

This week's case was generously donated by Florida Fan.  The following objects were seen in iodine-stained stool concentrates: (450x) ...

Answer:   Cryptosporidium species. The small size of these spherical structures (4-6 micrometers in diameter) and bright red staining usin...

The following was seen on a Pap-stained endocervical smear.  Identification? Thanks to Dr. Audrey Schuetz who donated this case!

Answer:  Not a Parasite; most consistent with a fiber containing proteinaceous deposits.  One reader suggested obtaining additional informat...

The following were found on a 10-year old boy from the northeastern United States.  Identification?

Answer:  Larval ticks, Ixodes species These little guys were a bit hard to make out due to their small size, but you can nicely see severa...