Monday, June 28, 2010

Case of the Week 121

Here's a challenge for all of you:
Nasal polyp removed from a 50 year old Indian man with complaints of chronic nasal obstruction. Histologic exam reveals the following: (CLICK ON IMAGES TO ENLARGE)

(Hematoxylin and Eosin, 40x final magnification)

(Hematoxylin and Eosin, 100x final magnification)

(Hematoxylin and Eosin, 200x final magnification)

(Hematoxylin and Eosin, 600x final magnification)

(Hematoxylin and Eosin, 600x final magnification)



Anonymous said...

Excellent images - my guess is rhinosporidiosis. Never before appreciated the resemblance of the individual structues to Prototheca.

Anonymous said...

Rhinosporidium seeberi.
We won't find this in the older parasitology books, because up until recently, it was considered a fungus. BW in Vt

santoshpath said...

Great images.The dual staining of the spores is an unusual feature, I think.

Anonymous said...

rhinosporidiosis !!!!