PMC6461061_01
KUB image (a) KUB image 8 years before the reference to our hospital reveals many spherical shaped calculi at the upper pole of the left kidney (arrow). (b) KUB image at the time of visiting our hospital reveals many spherical shaped calculi at the upper pole of the left kidney and beaded calculi that occupied left lower ureter (U2-U3) (arrows). The number of the calculi at the upper pole of the left kidney is decreased as compared with that of KUB image 8 years before. (c) KUB image 1 month after the first visit showed all ureteral calculi are excreted (arrow). KUB, kidney, ureter, and bladder radiograph.
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A 65-year-old female was incidentally found to have left renal stones 8 years ago (Fig. 1a). CT, kidney, ureter, and bladder radiograph showed left ureteral multiple calculi and the left caliceal diverticular calculi (Figs. 1b and 2). She was planned for transurethral lithotripsy; however, all ureteral calculi were delivered spontaneously at the time of re-examination 1 month after the first visit (Fig. 1c).
CT image at the time of visiting our hospital. (a) Plain CT image revealed a cystic lesion at the upper pole of the left kidney with apparent mural calcification posteriorly (arrow). (b) Contrast-enhanced CT image revealed that the low attenuation fluid within the cystic cavity when compared with the normally enhancing renal parenchyma confirms the presence of an upper pole caliceal diverticulum (arrow). (c, d) CT image revealed spherical calculi in the left lower ureter (U2-U3) (arrow).
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CT, kidney, ureter, and bladder radiograph showed left ureteral multiple calculi and the left caliceal diverticular calculi (Figs. 1b and 2).