I had a lumbar mri due to increased pain and found a lot of degenerative changes. it also found the following: there is a focus of uniform t2 prolongation in the medial lower pole of the right kidney measuring 20 mm in diameter. what does it mean?

Mass: This is a situation where your physician should sit down with the radiologist who interpreted the study and get a differential diagnosis as well as suggestions from the radiologist for any other diagnostic testing or recommendations for consultation with a specialist - a urologist, for example. The finding on your MRI shows a mass and further investigation is needed.