<prompt> Which among the following is associated with malignancy?Echinococcus granulosusSchisostoma hematobiumParagonimus westermaniGiardia lamblia  <response>: Ans: b Schisostoma hematobiumSchisostoma hematobium has now been classified as a human carcinogen.S.hematobium is strongly associated with squamous cell carcinoma, urinary bladder.Sandy patches in cystoscopy is also a marked feature of s.hematobium. Paragonimus westermani is oriental lung fluke, having operculated eggs. Cerebral type paragonimiasis produce jacksonian epilepsy. 