New stones develop at the site of 'clinically insignificant residual fragments' in one-fifth of patients
This article has no abstract so we have provided the first paragraph of the full text.
The term 'clinically insignificant residual fragment' (CIRF) was coined to describe the small (
4 mm) calculi that remain in the kidney or ureter following extracorporeal shockwave lithotripsy (ESWL). These fragments are expected to pass spontaneously. However, several studies have shown that so-called CIRFs can persist and grow to become a significant problem that requires further treatment. The term CIRF, and the management of these fragments, are controversial.
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