Case of the Week 58
The following were seen on splenic aspirate. Diagnosis?
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Answer to Case of the Week 57
Answer: Entamoeba histolytica/dispar Congratulations to all of the viewers who wrote in with the answer – you recognized that the morphologic features and size were consistent with these two closely related protozoa. E. histolytica is a recognized pathogen, although it only causes disease in approximately 10% of the people it infects. E. dispar, on the [...]
Case of the Week 57
Here’s a more straight-forward case than our recent ones: The following object was seen on stool ova and parasite examination and measures approximately 15 micrometers (Modified Trichrome stain, 1000x).
Answer to Case of the Week 56
Answer: proglottids of the broad fish tapeworm Diphyllobothrium latum. Congratulations to everyone who got this right! Also in the differential would be proglottids of Taenia spp. and artifacts such as onion skin which may be passed relatively intact and mimic tapeworm segments. However, the diagnosis is easily made by examining the central proglottid structures which [...]
Follow-up to “An unfortunate case”
Thanks to the readers who responded with the correct diagnosis to last week’s case! I’ve also presented this case at our weekly clinical pathology conference and I’ve found it extremely interesting and educational. This was indeed a case of hepatosplenic T-cell lymphoma (HSTL), gamma-delta type. Characteristically, lymphadenopathy was absent and there was no peripheral involvement [...]
An unfortunate case
It’s been a while since I posted an interesting case, but here’s one that I saw in follow-up during my flow cytometry month. The patient is a 44 yo M with a history of end-stage renal disease secondary to hypertensive nephropathy who was awaiting transplant > 2 years and undergoing peritoneal dialysis. Fatigue and anemia [...]
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