This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney & Ureturs, Subject name: Surgery
Dietl crisis is seen in: 
Select and explain. 
A. Intermittent hydronephrosis, B. Unilateral hydronephrosis, C. Bilateral hydronephrosis, D. Refractory hydronephrosis
A: Intermittent hydronephrosis
Answer: A: Intermittent hydronephrosis 
Explanation: Ans: a (Intermittent hydronephrosis) Ref: Bailey & Love, 24th ed,Died crisis is seen in intermittent hydronephrosis.Dietel crisisAfter an attack of a/c renal pain a swelling in loin is found. Pain is relieved and swelling disappears following the passage of a large volume of urine some hours later.Note:Unilateral hydronephrosis is most commonly caused by idiopathic pelviureteric junction obstruction or calculus. Right side is more commonly involved.