columns of Bertini are extensions of the renal cortex in between the renal pyramids.

(Cortical extensions into the medullary space.)

Each column consists of lines of blood vessels and urinary tubes and a fibrous material.

The scan will show the area as one with normal activity if it is a pseudotumor or will show decreased uptake if it is a cystic or solid renal mass.

This article related to the genitourinary system is a stub.