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Title
Under-grading of <4 cm renal masses on renal biopsy.
Authors
Harris, Catherine R; Whitson, Jared M; Meng, Maxwell V
Abstract
What's known on the subject? and What does the study add? It is well documented that biopsy of small renal masses is inaccurate and tends to under-estimate tumour grade compared with surgical specimens. To our knowledge there has not been a study showing grading discrepancy between biopsy and surgical excision in a large population-based cohort.