PMC6135561_01
Abdominal CT revealed an engorged appendix with no hydronephrosis over the bilateral kidney.
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Abdominal CT revealed a fecalith at the tip of the appendix and absence of hydronephrosis in the bilateral kidney (Fig. 1).
Renal ultrasonography revealed bilateral mild-to-moderate hydronephrosis ~11 mm after laparoscopic appendectomy on POD10.
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Follow-up with abdominal ultrasonography revealed bilateral hydronephrosis, but no intra-abdominal abscess (Fig. 2).
Kidney, ureter, and bladder studies revealed increased stomach and bowel gas patterns without obvious ureteral calculi.
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Kidney, ureter, and bladder radiograph (KUB) studies revealed increased stomach and bowel gas patterns, but no obvious ureteral stone formation (Fig. 3).
Right ureteral stone with inflammation at the orifice and left ureteral stone ~2 cm proximal to the ureterovesical junction.
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Bilateral obstructing stones were noted at the right ureteral orifice and left ureter, ~2 cm proximal to the ureterovesical junction, resulting to severe hydronephrosis (Fig. 4).