[Ureteral obstruction from metastases of a primary intestinal malignoma (author's transl)].

As of two own cases the authors refer about ureteral obstructions by paraureteral metastases of primary cancer within the intestinum. Diagnostic procedures within the digestive tract are strongly recommended, if within the urogenital region the etiology remains unclear. As often a causal therapy is not possible any more, recommendations for palliative urological procedures are given.