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
Painless hematuria is seen in all of the following except: March 2011 
Select and explain. 
A. Hypernephroma, B. Renal TB, C. Bleeding disorders, D. Renal infarction
D: Renal infarction
Answer: D: Renal infarction 
Explanation: Ans. D: Renal infarction If there is malignant cause for haematuria, there is usually no pain When the cause is inflammatory, there may be local deep tenderness and occasionally reflex spasm of the psoas muscle, leading to involuntary flexion of the hip joint Sudden occlusion of the renal aeries causes acute loin pain, usually with dipstick hematuria