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Acute retroperitoneal fibrosis secondary to uterine rupture

Retroperitoneal fibrosis has three stages, namely the occurrence of the causal factor, the production of fibrous tissue and the contraction of the fibrous mass with constriction of the retroperitoneal structures. The ureters appear to be the most vulnerable organs. The fibrosis envelops but does not invade the retroperitoneal structures (Ormond 1965). Acute retroperitoneal fibrosis following a gynaecological operation is unusual.