This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver, Subject name: Surgery
Most common cause of pyogenic liver abscess: 
Select and explain. 
A. Aspiration, B. Hematogenous spread from a distant site, C. Direct contact, D. Lymphatic spread
B: Hematogenous spread from a distant site
Answer: B: Hematogenous spread from a distant site 
Explanation: Ans. (b) Hematogenous spread from a distant site* 1st Common route - Biliary Ascending* 2nd Common route - Portal vein route* 3rd Common route - Hepatic artery