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
[{'content': 'PAN is associated with \nSelect and explain. \nA. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis E', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 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)', 'role': 'assistant'}]