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In the last 4 years many studies have been published on the topic of upper urinary tract urothelial carcinoma (UTUC). This is a recent review of the available literature of the last 3 years. A systematic Medline/PubMed search on UTUC including limits for clinical trials and randomized, controlled trials was performed for English-language articles using the keywords 'upper urinary tract carcinoma', 'nephroureterectomy', 'laparoscopic', 'ureteroscopy', 'percutaneous', 'renal pelvis', 'ureter' and their combinations from January 2008 to December 2010. Additional selected reports from 2007 were included. Case reports and non-English literature were excluded. Publications were mostly retrospective, including some large, multicentre studies from the Upper Tract Urothelial Carcinoma Collaboration (UTUCC). The authors of this article are members of the UTUCC. Altogether, 92 original articles dealing with UTUC were identified and summarized. The vast majority of the available literature has a low level of evidence (level IV), although many multicentre studies tried to overcome the problem of low numbers by pooling data. It was concluded that in the last 3 years our knowledge regarding UTUC has increased dramatically, although new study concepts allowing us to increase the level of evidence are needed.

Upper urinary tract urothelial carcinoma: what have we learned in the last 4 years?