Schistosoma mansoni and haematobium can be ID'd by their unique spines. S. mansoni has a lateral spine as seen on the path while S. haematobium has a terminal spine (S. japonicum has no spine).
See following for path comparisons (mansoni L, haematobium M, japonicum R)
https://www.yourgenome.org/sites/default/files/images/photos/Schistosome%20eggs.jpg
It also looked exactly like schistosome on the slide--it had the little spine. Entamoeba would have had a bunch of RBCs inside.
Schistosoma has spines whereas Giardia doesnt have a spine
submitted by โmonoloco(155)
When you have a traveler who has intermittent abdominal symptoms and diarrhea, and who has traveled to the likes of northern Africa and such, Schistosomiasis needs to be on your radar. At least, thatโs how Iโve incorporated this nugget into my mental space.