Day 10: tape worms, echinococcus
Tapeworms: Today we discussed tapeworms, fish tape worm D. latum, pork Tape worm (T. Solium), beef tape worm (T. saginata). Of all of them, probably the most significant is the pork tape worm, not so much because infection with it causes disease, but ingestion of its eggs causes neurocysticercosis. http://www.nejm.org/doi/full/10.1056/NEJM199209033271004 The article often quoted to demonstrate this point with orthodox Jews in New York who acquired it because their South American workers who were preparing the food had the tape worm themselves. Having tapeworms can be difficult to diagnose, we were told of one patient who was actually given anti-pscyh medications, the take home point being to document (picture and or bring in the worm or proglottids), to help identify it. Thereis a stool antigen (ELISA) for T. solium. Hymenolepsis nana (not to be confused with E. nana) is a dwarf tapeworm causing abdo pain and possibly pruritis, the one reason to check stool O&P in...