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February,
2009
Case 245
A 64-year-old man returned from a trip to Africa with fever and chills.
He went to a local hospital for medical assistance. A blood
specimen was collected and sent to Hematology for work-up, including
Parasitology. Only a thick blood smear stained with Giemsa was
available to be reviewed by the pathologist. Figures A-C
represents what was observed in 300 fields at 1000x magnification.
What is your diagnosis? Based on what criteria? What, if any,
follow-up would you recommend?
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A |
B |
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C |
Click
here for the answer to Case 245.
Case 246
A microbiologist at a public health laboratory contacted DPDx for
diagnostic assistance for identifying a tapeworm proglottid received at
their lab. A wet mount was prepared from some of the transport media,
and eggs morphologically-consistent with those of Taenia were observed. The DPDx Team recommended that the submitter clear the proglottid with
lactophenol until the uterine branches could be observed and counted.
If
the branches were still difficult to see, it was recommended that India
ink be injected into the genital pore. Figure A shows the image that the
submitter emailed to DPDx for confirmation. What is your diagnosis? Based on what criteria?
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Acknowledgments: This case and image were kindly contributed by the
Orange County Public Health Laboratory in Santa Ana, California.
Click
here for the answer to Case 246.
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.
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