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Insights into Imaging
Fig. 18 | Insights into Imaging

Fig. 18

From: Active surveillance of small renal masses

Fig. 18

Cystic Bosniak IIF renal mass (arrows) presenting growth over time and showing malignant features with an occurrence rate of 5%. a Unenhanced US showing a cystic renal lesion with thickened septa. b Unenhanced US of the same lesion 1 year later showing increasing nodularity in the previously thickened septa, consistent with progression

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