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Calyceal crescent sign

Dr Frank Gaillard et al.

The calyceal crescent sign refers to the early IVP appearance of markedly dilated renal calyces. It is formed by contrast outlining the collecting ducts and ducts of Bellini which are distorted by the associated enlarged calyces. It is a marker of elevated pressure within the renal pelvis.

References

Article Information:

System: Urogenital

Section: Signs

Tag: kidney

Crescent Moon Crescent moonAuthor: P. Bramwell Y0kwetahoeOriginal file: http://commons.wikimedia.org/wiki/File:Crescent_Moon.JPGModifications:  croppedLicense:This image has been released into the public domain by its author, Y0kwetahoe. This applies worldwide.In some countries this may not be legally possible; if so:Y0kwetahoe grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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