This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'All are features of Hypernephroma except \nSelect and explain. \nA. Persistent pyrexia, B. Hematuria, C. Polycythemia, D. Lower pole involvement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: RCC commonly occurs in upper pole of kidney . The classic triad of loin pain, loin mass and haematuria is seen in <10% of patients with a renal tumour. Nowadays, the majority of diagnoses result from incidental findings. This shift is a consequence of the widespread use of USS and CT imaging, performed for other reasons. That said, paraneoplastic syndromes - symptoms caused by hormones or cytokines excreted by the tumour cells or by an immune response against the tumour - are not uncommon in RCC and symptoms include hypercalcaemia, fever and erythrocytosis . ( ref : - Bailey 27th ed , chapter 76 , pg no : 1417 )', 'role': 'assistant'}]