All the following parasites cause malignancy except: (A) Schistosoma haematobium, (B) Clonorchis sinensis, (C) Opisthrochis viverrini, (D) Onchocerca volvulus
Answer is D. S. haematobium - SCC of urinary bladder
C. Sinensis - Cholangiocarcinoma of liver, bileduct.
O. Viverrini - Cholangiocarcinoma of bileduct.