Renal hilum
Hilus renalis
Definition
The renal hilum is the indented medial region of the kidney through which structures such as the renal artery, renal vein, lymphatics, nerves, and the ureter enter or exit the kidney. It serves as the gateway for vascular, lymphatic, and urinary connections between the kidney and the rest of the body. The renal hilum leads internally into the renal sinus, a cavity containing the renal pelvis and associated structures.
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