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A 45-year-old man comes to the hospital complaining of sudden, very sharp pain in his right side (flank pain) that comes in waves. He also mentions that his urine looks pinkish (hematuria). On examination, his belly is soft but he is in a lot of pain. We first order an Ultrasound, but to be sure, we perform a CT scan of the abdomen (NCCT). The scan shows a bright, white spot (calculus) stuck in his right ureter (the tube connecting the kidney to the bladder), causing the kidney to swell slightly (hydronephrosis). Diagnosis: Right ureteric renal stone. Management: We give him strong medicine for pain and lots of fluids. If the stone is too big to pass, we might use 'lithotripsy' (using sound waves to break the stone into tiny pieces).