[On clinical and differential diagnosis of primary ureteral tumors]

Primary tumours of the ureter are to be regarded as rare tumours. Etiopathogenesis, pathology and clinic are discussed, taking into consideration own experiences. The authors cannot subscribe to the widespread view of operating primary solitary tumours of the ureter on principle only radically in form of the nephroureterectomy. A differentiated, individual approach with a primarily conservative-reconstructive orientation is recommended.