Sunday, June 30, 2013

Case of the Week 264

In going through our archives the other day, I found this absolutely stunning slide.  I believe it is stained with a modified Trichrome stain, although the purple coloration is very striking.
Click on the images to enlarge - they're even better in large format.






 
 
Identification?


8 comments:

Anonymous said...

Hidatidosis

Anonymous said...

Echinococcus daughter scolices and hooklets. Yes, gorgeous slide.

Anonymous said...

Hooklets and scolices of Echinococcus.

Florida Fan

PC said...

Hydatid sand.

Anonymous said...

Spectacular case.

Many pathologists will miss this on real cases unless we see the scolices which stain!! We generally like flatter lower contrast microscopy and, forgiving poor nomenclatures, have our condensers relatively wide open.

Aileen M Marty said...

ZN stain will show that many of the hookelts are acid-fast. :)

Anonymous said...

Holy smokes.

Parasite Gal said...

To anonymous - I also leave my condenser wide open for my surgical pathology and cytopathology cases, but I've learned that when looking for hooklets, to always flip your condenser down. It really makes the hooklets 'pop'!