This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Organisms associated with fish consumption and also causes carcinoma Gallbladder 
Select and explain. 
A. Gnathostoma, B. Anglostrongyloidosis cantonensis, C. Clonorchis sinensis, D. H.dimunata
C: Clonorchis sinensis
Answer: C: Clonorchis sinensis 
Explanation: Clonorchis sinensis Clonorchis sinensis is a liver fluke, acquired by Ingestion of raw or inadequate cooked freshwater fishes In human body, it lives within bile ducts and causes Inflammatory reaction leading to cholangiohepatitis and biliary obstruction. It is well known risk factor for cholangiocarcinoma It is a rare, but mentioned risk factor for carcinoma Gallbladder Ref: www.ncbi.nlm.gov/pubmed/3993073