• Brenda’s most recent MRI measurement of total kidney volume (TKV) was 1284 mL.

• Height-adjusted TKV (htTKV) = 756 mL/m

• Mayo risk category 1B (8)

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Brenda’s estimated kidney growth is 1.5%–3.0%. Because of the intrinsic error in imaging, annual TKV follow-up is not recommended for assessing treatment response (9).