Lobster claw sign - papillary necrosis

Case contributed by Dr Matt A. Morgan

The first image demonstrates a normal calyx.

The second image demonstrates "lobster claw sign” seen in papillary necrosis.

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Case information

rID: 40421
Published: 21st Oct 2015
Last edited: 1st Dec 2019
System: Urogenital
Inclusion in quiz mode: Excluded

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