This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bladder Cancer, Subject name: Surgery
[{'content': 'Ca urinary bladder commonly presents as : \nSelect and explain. \nA. Haematuria, B. Frequency, C. Dysuria, D. Abdominal lump', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans is \'a\' ie hematuria [Ref. Bailey & love, 25/e p1336 (24/e, p1363; 23/e, p1229)\\"Painless hematuria is by far the most common symptom and should be regarded as indicative of a bladder carcinoma until proven otherwise. "Also RememberMC primary tumor which gives secondary to penis is- bladder carcinoma*Commonest tumor of Urinary bladder -Transitional cell Ca*Commonest tumor of U.B. in a child - Rhabdomyosarcoma*MC symptom of renal cell Ca -Painless hematuriaMC symptom of wilm\'s tumor - mass in abd.MC symptom of bony metastasis -pain*MC symptom of renal stone -pain*Earliest symptom of vesical calculus- frequency*Cardinal symptom of renal trauma -hematuria*MC symptom of acute arterial occlusion -Pain*', 'role': 'assistant'}]