Creepy Dreadful Wonderful Parasites

The following were submitted to the lab for identification in a small jar of formalin.  They measure approximately 2 mm in greatest dimensio...

Answer:  Crab lice, ( Phthirus pubis or Pthirus pubis ).  Anon points out that " Pthirus " is correct rather than "Phthirus...

The following case was generously provided by Emily Patterson. These objects were found within a portion of resected intestine in a patien...

Answer:   Ascaris lumbricoides Although I didn't show you a close up of the worms in this surgical container, the size and gross morph...

The following were seen in the stool of a 15 year old autistic female with long standing constipation and were submitted for parasitic ident...

Answer:  Mucus casts Mucus casts may be seen in a variety of gastrointestinal disorders and can present as small ragged ropes of mucus or ...

This weeks case was generously donated by Florida Fan.  The following worm was found in the feces of a 15 month-old boy who is in otherwise ...

Answer:   Moniliformis moniliformis , one of the "thorny-headed" worms (acanthocephalans), causing human acanthocephaliasis. You...

The following objects were seen on a peripheral blood film from a 36 year old male who recently returned from an African safari.  Identifica...

Answer:   Trypanosoma brucei trypomastigotes in peripheral blood. Trypanosoma brucei is only present in humans as trypomastigotes (motile ...