The medulla is the inner part of the kidney. It consists of cone-shaped renal pyramids that contain the blood vessels and tubular structures of nephrons. The NIDDKD notes that nephrons are the ...

The medulla is comprised of pyramidal tissue units, called the renal pyramids. In between the pyramids, there are spaces called renal columns. Blood vessels pass through the renal columns.

splitting it into triangular parts called renal pyramids. The renal pyramids contain the loops of Henle of each renal tubule, as well as the collecting ducts. Each of the renal pyramids opens at ...

Grossly, the earliest stage consists of scattered small abscesses located in the renal pyramid, more or less in a line parallel to the cortex at a level about two thirds the way from the tip of ...

Involved sinus veins could be followed retrograde to the cortex between renal pyramids with tumor nodules arrayed along the pyramid-cortex interface. Histologically, the involved parenchymal veins ...