Creepy Dreadful Wonderful Parasites

The following were seen in prostatic secretions from a man with chronic prostatis.  Diagnosis?

Answer:  Flagellate protozoa, consistent with Trichomonas vaginalis or Pentatrichomonas hominis (a closely related GI commensal).  The histo...

A child presented with rapid onset of headache, confusion, and mental status changes after spending the weekend swimming in a warm fresh wat...

Answer:  Primary Amoebic Meningoencephalitis (PAM) due to Naegleria fowleri.  Naegleria fowleri trophozoites can be seen in both the CSF an...

The following objects were seen in a Pap-stained ThinPrep-preserved specimen of pleural fluid in a 50 year old male with chest pain, right f...

Answer:  Ova (eggs) of Paragonimus sp. The identification can be made by the characteristic operculate eggs, moderate size (90-100 microns...

The following case was generously donated by Dr. Sandeep T from Bangalore, India. The patient is a 27 yr old lady with complaints of puff...

Answer:  Fasciolopsis buski , the intestinal fluke.  The first step in making the diagnosis is recognizing that these objects are flukes -...

A middle-aged male presented with recurrent urinary tract infections and cystoscopy revealed a large bladder stone (7.0 x 5.2 cm) filling t...

Answer:  Foreign body This is quite an unusual case, that as Lukus Roberts mentioned, was published in JCM this past year: http://www.nc...