This week's case is that of an elderly female with recent travel to a malaria-endemic area in South America. To evaluate the patient for malaria, venous blood was collected in tubes containing EDTA and thick and thin blood films were made immediately at the local hospital laboratory. These slides were stained and sent to my laboratory for examination, in addition to a tube of blood. Below are representative fields from those slides (images courtesy of Emily F.):
Two days later, we used the blood to make additional slides for teaching purposes. However, review of the new slides now revealed different forms than what was initially seen:
What is the likely cause of these different forms?
Every week I will post a new Case, along with the answer to the previous case. Please feel free to write in with your answers, comments, and questions. Also check out my image archive website at http://parasitewonders.com. Enjoy!
The Fine Print: Please note that all opinions expressed here are mine and not my employer. Information provided here is for medical education only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.