This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
PAN is associated with 
Select and explain. 
A. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis E
B: Hepatitis B
Answer: B: Hepatitis B 
Explanation: Polyaeritis nodosa (PAN) is a systemic vasculitis of small or medium-sized muscular aeries that typically involves the renal and visceral vessels and spares the pulmonary circulation. There is no association with ANCAs, but a third of the patients have chronic hepatitis B infection, which leads to the formation of immune complexes containing hepatitis B antigens that deposit in affected vessels. The cause is unknown in the remaining cases. (Robbins Basic Pathology,9th edition,pg no.352)