Complete (radical) nephrectomy is surgery to remove all of a kidney. Kidney-sparing surgery (partial nephrectomy) removes part of a kidney.
White matter signal changes on the MRI essentially means that on the MRI, the white matter showed some scattered bright spots. White matter in the brain refers to the fiber tracts that carry information to and fro from the brain. My first question when somebody asks me what next and what does this mean is to ask them why was the MRI done in the first place.
White matter matters. White matter inflammation causes the brain-blood barrier to become partially ineffective. When it comes to diseases of the brain and nervous system, two UC Davis neurology pioneers have a simple way to sum up a lifetime of complex and cutting-edge research: White matter matters.