IgG4-related retroperitoneal fibrosis

MONDO:0018848

Retroperitoneal fibrosis (RPF) is characterized by the development of a fibrotic mass surrounding retroperitoneal structures, such as aorta, vena cava, ureters and psoas muscle.

Also known as: Ormond disease, Retroperitoneal Fibrosis, idiopathic retroperitoneal fibrosis, retroperitoneal fibrosis, Ormond's disease

36 clinical trials for this condition and its sub-types, 1 tagged with IgG4-related retroperitoneal fibrosis itself.

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Where it sits in the disease tree

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Part of

↑ Immunoglobulin G4-related sclerosing disease (34)

Sub-types of IgG4-related retroperitoneal fibrosis

Fibrosclerosis, multifocal 0 trials

Including sub-types (36) Tagged with IgG4-related retroperitoneal fibrosis (1)

Completed 1

Scientists hunt for clues to diagnose rare inflammatory diseases

Knowledge-focused Completed

This completed study reviewed the medical records of 210 people with aortitis (inflammation of the aorta) or retroperitoneal fibrosis (scar tissue in the abdomen). The goal was to find patterns in symptoms, lab tests, and imaging that could help doctors tell different types of th…

Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Knowledge-focused

Last updated Jun 27, 2026 13:06 UTC

IgG4-related retroperitoneal fibrosis

Where it sits in the disease tree

Scientists hunt for clues to diagnose rare inflammatory diseases