This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
Hematuria with dysmorphic RBC are seen in 
Select and explain. 
A. Acute glomerulonephritis, B. Renal TB, C. Renal calculi, D. Chronic renal failure
A: Acute glomerulonephritis
Answer: A: Acute glomerulonephritis 
Explanation: Acute pyelonephritis, a common suppurative inflammation of the kidney and the renal pelvis, is caused by bacterial infection. It is an impoant manifestation of urinary tract infection (UTI), which can involve the lower (cystitis, prostatitis, urethritis) or upper (pyelonephritis) urinary tract, or both. As we shall see, the great majority of cases of pyelonephritis are associated with infection of the lower urinary tract. Such infection, however, may remain localized without extending to involve the kidney. UTIs constitute an extremely common clinical problem. Refer robbins 9/e p911