A 35-year-old man is awakened at night because of severe lower abdominal pain that radiates to the groin. The pain is very intense and comes in waves. The next morning, he notices blood in his urine. On examination, there are no remarkable findings. Which of the following is the most likely diagnosis?

A 64-year-old man presents with two groin lumps, one on each side. Onexamination, the lumps have a cough impulse and are reducible but donot extend into the scrotum. A: Direct inguinal B: Epigastric C: Exomphalos D: Gastroschisis E: Hiatus F: Incisional G: Indirect inguinal H: Paraumbilical I: Spigelian J: Umbilical hernia of infants

A 35-year-old man is awakened at night because of severe lower abdominal pain that radiates to the groin. The pain is very intense and comes in waves. The next morning， he notices blood in his urine. On examination， there are no remarkable findings. Which of the following is the most likely diagnosis？（ ） A: Acute cystitis B: Renal cell carcinoma C: Ureteral lithiasis D: Hydronephrosis E: Autosomal dominant polycystic kidney disease