This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Stauffer syndrome is associated with the following malignancy: \nSelect and explain. \nA. Renal cell carcinoma, B. Neuroblastoma, C. Prostate cancer, D. Small cell carcinoma of lung', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The presenting signs and symptoms of renal cell carcinoma include hematuria, abdominal pain, and a flank or abdominal mass. A spectrum of paraneoplastic syndromes has been associated with this malignancy, including erythrocytosis, hypercalcemia, nonmetastatic hepatic dysfunction (Stauffer syndrome), and acquired dysfibrinogenemia. Anemia, a sign of advanced disease, is more common. Reference: Cooper C.S., Joudi F.N., Williams R.D. (2010). Chapter 38. Urology. In G.M. Dohey (Ed), CURRENT Diagnosis & Treatment: Surgery, 13e.', 'role': 'assistant'}]