What does it mean when a renal ct scan shows, thinning of the cortex, punctate calcification (with no stones), and contrast extending into the calyx.

Atrophy: Renal cortical thinning is seen due to functional loss of nephrons. There are many causes of "medical renal disease"which result in atrophy. Hypertension is the leading cause. Punctuate calcification s are very tiny stones. Contrast is supposed to be in the calyx, so i'm uncertain why that was stated. Was there anything else related to that statement?