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DOI: 10.4103/1450-1147.150546
Bone Scintigraphy Hot-Spot in Projection to Rib and Kidney: Role of Single Photon Emission Computer Tomography/Computer Tomography in Distinguishing a Urine Collection in Renal Calyx from a Metastasis to Rib

On planar bone scintigrams, activity enhancement foci in projection to kidney and lower ribs can arise from the kidney, or from bone lesions. A differentiation based only on the exact location and shape of the hot spot can sometimes be misleading, resulting in a false qualification of a rib metastatic lesion as urine collection in the kidney or opposite. The authors illustrate the problem with three cases: In two patients, such a hot spot appeared to be the solitary metastatic focus; in one, highly suggestive for solitary metastatic focus, it was proven to be a urine collection.
Keywords
Bone metastasis - bone scintigraphy - kidney - single photon emission computer tomography/computer tomographyPublication History
Article published online:
21 May 2022
© 2015. Sociedade Brasileira de Neurocirurgia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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