• Proliferation of fibrosis in retroperitoneum.

  • Aetiology:

  • Idiopathic (Ormond’s disease), autoimmune, Hodgkin’s, carcinoid, methysergide.
  • Common in men, 4-6th decade.

  • Fibrosis involves- ureter, IVC, aorta, mesenteric vessels.

  • Presenting symptoms: (depends upon organs involved)

    • Poorly localized abdominal pain, sudden sever pain, unilateral leg swelling, oliguria, dysuria, haematuria.