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.
Symptoms of White Matter Brain Disease. White matter brain disease results in the degeneration of white matter, which creates a large portion of the brain. The primary form of white matter brain disease is multiple sclerosis, which results in the destruction of the myelin sheath. In multiple sclerosis, there is defective formation or maintenance of the myelin because of dysfunction of the oligodendrocytes, a type of glial cell.