All of the following are urinalysis findings associated with nephrotic syndrome except:

In nephrotic syndrome, a hallmark finding in urinalysis is significant proteinuria, typically exceeding 3.5 grams per 24 hours. Therefore, mild proteinuria would not be a characteristic finding in this condition. In contrast, the presence of oval fat bodies, fatty casts, and waxy casts is commonly observed in nephrotic syndrome due to the heavy protein loss and lipid abnormalities associated with the condition.

Oval fat bodies represent reabsorbed lipids from the renal tubules that have absorbed significant amounts of proteins. Fatty and waxy casts indicate the presence of fat in the urine, which is often due to lipiduria, a common finding in nephrotic syndrome. Renal tubular epithelial cells can also appear in urine during nephron damage, but they are more indicative of tubular injury rather than specifically diagnostic for nephrotic syndrome.

The emphasis on significant proteinuria in nephrotic syndrome distinguishes this condition from others that may present with mild protein levels, underscoring why mild proteinuria does not align with the expected findings in nephrotic syndrome.