Published in:
01-02-2016 | Classics in Abdominal Imaging
The “Nubbin” Sign
Published in: Abdominal Radiology | Issue 2/2016
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A “nubbin” describes something that is small and stunted, like the pencil sharpened to the last usable length as seen in Fig. 1. This term is also used as a metaphor for the imaging appearance of a diminutive lower pole of the kidney in the setting of a duplicated collecting system. The diminutive lower pole may cause diagnostic confusion, as the nubbin may mimic a mass at imaging [1].
Fig. 1
A nubbin of a pencil (arrow), or stub, compared to its normal twin
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