Average is 5-6mm. Some radiologist use 1cm as the norms and anything less than that is considered thinning of renal corticol.
normal kidney measurements
cortical radiate arteries
Coil
Coil
This is essentially a normal kidney ultrasound. A mild cortical echogenicity in both kidneys, and normal renal function can occur in pregnancy when your over-all blood volume is increased.
A column of Bertin is a normal anatomical variation in the kidney where there is an extension of cortical tissue between the renal pyramids. It appears as a vertical ridge on the surface of the kidney and is considered a harmless variation.
millimeters
The average adult kidney typically measures around 10-12 centimeters in length, 5-7 centimeters in width, and 2-3 centimeters in thickness.
Cortical nephrons are located mainly in the cortex of the kidney. They have shorter loops of Henle that mainly dip into the outer medulla. These nephrons are responsible for most of the kidney's filtration processes.
Renal cortical cysts are fluid-filled sacs that form on the outer surface of the kidney. They are usually benign and do not typically cause any symptoms. Renal cortical cysts are common and are often discovered incidentally during imaging tests for other reasons.
cortical thickness is a brain morphometric measure used to describe the combined thickness of the layers of the cerebral cortex in mammalian brains,
The size of normal kidneys after maturity is a length of about 12cm, breadth of about 6cm and thickness of about 3cm. When one kidney is removed, the remaining kidney enlarges to compensate for the functional absence of the first.