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January,
2009
Case 243
A ten-year-old child returned from summer camp with abdominal
discomfort, nausea and diarrhea. He was taken to his pediatrician
and a stool specimen was collected for routine work-up, including ova
and parasite (O&P) examination. Figures A-D show
what was observed on a trichrome-stained slide prepared from a PVA-preserved
aliquot of the stool. The objects in Figures A and B
measured approximately 11 micrometers; the objects in Figures C
and D measured approximately seven micrometers. What is your
diagnosis? Based on what criteria?
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A |
B |
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C |
D |
Click
here for the answer to Case 243.
Case 244
An 80-year-old resident of a long-term care facility presented with a
skin condition manifesting as thick crusts over the skin accompanied by
slight itching. The patient was originally treated for impetigo,
with no resolution, and was ultimately admitted to the hospital for
further testing. A skin biopsy was performed. The specimen
was sectioned, stained with hematoxylin and eosin (H&E) and sent to a
dermatopathologist for diagnostic assistance. Figures A-D
show what was observed in the stained sections. Figures A
and B were taken at 200x magnification. Figures C
and D represent the same fields, respectively, taken at 400x
magnification. What is your diagnosis? Based on what
criteria?
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| A |
B |
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| C |
D |
Click
here for the answer to Case 244.
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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