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Renal calyceal diverticulum

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Flank pain and hematuria.

Patient Data

Age: 65 years
Gender: Male
ct

A 28mm cystic lesion is present at posterior aspect of right kidney, showing dependent dense calcific precipitate. This density increased in the delayed phase by excreted contrast accumulation inferring calyceal diverticulum. In addition, several non-enhanced simple cortical cysts are seen at both kidneys, with maximum diameters of 17mm. A few tiny stones, less than 2mm are seen at right kidney. A 4mm stone is also observed at lower calyx of left kidney.

Case Discussion

Calyceal diverticulum is a congenital outpouchings from the renal calyx or pelvis into the renal cortex and lined with transitional cell epithelium.

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