April, 2007

Case 201:
A 49-year-old Filipino man had an intestinal tissue biopsy taken.  Figures A-C show what was seen on slides stained with hematoxylin and eosin (H & E).  Figure A was taken at 100× magnification, Figure B was taken at 400× magnification, and Figure C (of a different section) was taken at 1000× magnification. Figure D was taken from a wet mount slide of formalin preserved stool; the object of interest in Figure D is approximately 40 micrometers long by 20 micrometers wide.  What is your diagnosis?  Based on what criteria?

A	B

C	D

Acknowledgement: Case study images were captured from reference material donated by Dr. John H. Cross of the Uniformed Services University of the Health Sciences, Bethesda, MD.

Click here for the answer to Case 201.

Case 202:
A patient was seen at a hospital in Rwanda with headache, fever, and chills.  A thin blood smear was made, stained with Giemsa, and examined.  Figures A-F show what was seen on the smear at 1000× magnification.  What is your diagnosis?  Based on what criteria?

A	B

C	D

E	F

Acknowledgement: Case study images were captured from reference material donated by Mme. Severina Munyeshyaka of the University Hospital in Butare, Rwanda.

Click here for the answer to Case 202.

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.