Idiopathic Retroperitoneal Fibrosis

The specialist who usually coordinates the workup of idiopathic retroperitoneal fibrosis is the urologist, together with the nephrologist when there is an impact on kidney function. This is an uncommon disease in which fibrous tissue forms in the back of the abdomen, which may encase and compress structures such as the ureters.

What is it? It is a chronic inflammatory process of unidentified cause that produces a plaque of scar tissue in the retroperitoneum, capable of affecting the flow of urine from the kidneys to the bladder.

Possible manifestations: Dull pain in the lower back, flank, or abdomen, general malaise, and, in some cases, signs stemming from urinary obstruction.

When should it be checked? When you notice persistent lower back pain or unexplained changes in urine, it is worth having a professional carry out a detailed evaluation to guide follow-up.