Hello, Welcome to HCM, I am Dr. Das.
Firstly, granular cast may be found in many conditions like in case of urinary tract infection
, chronic kidney disease
, blood in urine, and others.
As, your renal function test ( Creatinine
, BUN,) and liver
enzymes are within normal limit, the possibility of a chronic kidney disease is ruled out.
and Pus cells in urine are within normal limit, the possibility of any infection and blood in urine are ruled out.
So, over all, the finding is due to the previous history of stone.
You do not need to worry.