Which of the following is the largest trematode (fluke) known to infect humans?
- A Fasciola hepatica
- B Fasciolopsis buski ✓
- C Paragonimus westermani
- D Schistosoma mansoni
Correct answer: B. Fasciolopsis buski
Explanation
Fasciolopsis buski, the giant intestinal fluke, measures 20 to 75 mm in length and is the largest trematode parasitizing humans. It is acquired by ingesting metacercariae attached to aquatic plants such as water caltrop, water chestnut, and water bamboo. Fasciola hepatica is the largest liver fluke but is smaller than F. buski, Paragonimus is the lung fluke, and schistosomes are elongated dioecious worms, not broad leaf-like flukes.
Reference: Paniker's Textbook of Medical Parasitology, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.