Rack your Brains - Image Challenge 1

June 10, 20082comments

Brief Case History:

A 23-year-old man spent 9 months in Kenya. He reported taking doxycycline for prophylaxis while in Kenya, however he poorly adhered to this daily regimen. Upon his return to the United States, he saw a doctor due to fevers. It was determined from the patient's blood that he had a low platelet count and a normal liver function. Blood films were made from a finger stick, stained with Giemsa, and examined. The objects below were observed in the thick and thin blood films under oil immersion 1000×.
Drop in your answers in the comments section -with the diagnosis (species level identification) and based on what criteria is ur identification.

Images & History Courtesy: DPDx, CDC


The answer is :

Plasmodium malariae , based on the size of infected RBCs ( not enlarged) which rules out P.vivax and P.ovale, characteristic band-form trophozoite in the third pic and the geographic location.

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+ comments + 2 comments

Anonymous
June 10, 2008 at 2:38 PM

Answer theriyala

Anonymous
June 17, 2008 at 5:22 PM

Mate, whats the answer?


Maverick

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