November, 2007

Case 215:
A 33-year-old Lithuanian woman had swellings in various regions of her body that developed over the last two years.  She reported that she worked as a cook, and she also stated she had traveled to Kazakhstan three years ago.  A biopsy was taken from a tumor over her right eye lid and was sent to a local pathology laboratory for further examination.  Sections were stained with hematoxylin and eosin (H & E) stain.  Figures A-D were captured from the sections and emailed to DPDx for diagnostic assistance.  What is your diagnosis?  Based on what criteria?

A	B

C	D

Acknowledgement: This case was kindly contributed by the Laboratory of Parasitology, National Public Health Research Center in Vilnius, Lithuania.

Click here for the answer to Case 215.

Case 216:
An asymptomatic, 35-year-old male with no known travel history went to his physician at a wellness clinic for a routine examination.  An ova and parasite (O & P) examination was performed as part of the laboratory work-up at the State Health Laboratory.  Unusual objects were observed in the formalin-concentrated stool, and the specimen was sent to CDC for diagnostic assistance and possible identification.  Figures A-D were captured from wet mounts of the specimen.  The objects measured approximately 50 micrometers by 42.5 micrometers.  What is your diagnosis? Based on what criteria?

A	B

C	D

Acknowledgement: This case was kindly contributed by the Washington State Public Health Laboratories.

Click here for the answer to Case 216.

Images presented in the monthly case studies are from specimens submitted for diagnosis or archiving.  On rare occasions, clinical histories given may be partly fictitious.