Calyceal diverticulum

Case contributed by Dr Mostafa El-Feky


Left flank pain

Patient Data

Age: 40
Gender: Male

CT urography

The left kidney shows a middle zonal partially exophytic renal cyst measuring 4 cm, showing dependent dense calcific precipitate (milk of calcium). This density increases in the delayed phase by excreted contrast accumulation. Thread like connection to the middle calyx that may be the diverticular connection or a compressed nearby minor calyx.

Case Discussion

The radiological features are representing mostly renal milk of calcium within a renal cyst in non-contrast phase. In excretory phase, the accumulation of contrast within the cyst augmenting the size of the dependent density represents a communication to the renal calyceal system and so it is considered as a calyceal diverticulum.

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Case information

rID: 56402
Published: 8th Nov 2017
Last edited: 14th Aug 2019
System: Urogenital
Inclusion in quiz mode: Included
Institution: Dar El Ashaa Center

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