Shown in this case are sections of a round worm in the colonic mucosa. The presence of cross-sections within the mucosa raise the possibility of several nematodes, including Strongyloides stercoralis, Capillaria philippinensis, and Trichuris trichiura, with the latter being supported by the presence of free-hanging sections of worm in the intestinal lumen (recall that the smaller head of Trichuris embeds itself into the colonic mucosa (arrows below), leaving the larger body hanging free in the lumen.) (CLICK ON IMAGE TO ENLARGE)
However, the defining feature of this case is the characteristic morphology of the eggs within the uterus demonstrating smooth walls and bipolar plugs.
Other features shown in this case are a nice example of a stichocyte with large nucleus and nucleolus and classic polymyarian musculature.
Thanks to everyone who wrote in for this case!
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