Sunday, July 20, 2014

Answer to Case 312

Answer:  Plasmodium vivax

As described by Florida Fan, many of the characteristic P. vivax morphologic features are present in these images including infected RBCs that are larger than non-infected RBCs, schizonts with many merozoites (12-24) and infected cell "hugging" of adjacent RBCs.  In fact, this case had the "huggiest" (is that a word?) RBC I've ever seen.  This case also had free merozoites which are not commonly seen in peripheral blood smears.  Lastly, faint stippling (Schuffner's dots) was seen in some cells.  Here are some representative images from this case:

No comments: