<prompt> Dietl crisis is seen in:Intermittent hydronephrosisUnilateral hydronephrosisBilateral hydronephrosisRefractory hydronephrosis  <response>: Ans: a Intermittent hydronephrosis Ref: Bailey Love, 24th ed,Died crisis is seen in intermittent hydronephrosis.Dietel crisisAfter an attack of ac 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. 