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Causes of retroperitoneal haematoma
| Trauma |
| Benign and malignant renal tumours (renal cell carcinoma, malignant melanoma, angiomyolipoma, phaeochromocytoma, adenoma, myelolipoma) |
| Antithrombotic therapy |
| Inflammatory disorders (periarteritis nodosa, Wegener angeitis) |
| Severe portal hypertension |
| Vascular abnormalities (aneurysm) |
| Ureteral calculi |
| Iatrogenic (complication of coronary angioplasty) |
| Bleeding disorders (haemophilia) |
| Idiopathic |
