Phantom calyx

Dr Dan J Bell and A.Prof Frank Gaillard et al.

A phantom calyx is a solitary calyx which fails to opacify with contrast amidst an otherwise well-opacified pelvicalyceal system. It is due to an intrarenal process which has infiltrated and caused obliteration of the involved collecting system element.

It may be seen in:

If the calyx is dilated and filled with tumour (but still visible) then it is referred to as an oncocalyx.

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Article information

rID: 9844
System: Urogenital
Section: Signs
Tag: kidney, refs
Synonyms or Alternate Spellings:
  • Phantom calyces
  • Phantom calix
  • Phantom calices

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