title: Metachronous Primary Adenocarcinoma of Distal and Proximal Ureter within Two Years.
abstract: Primary adenocarcinoma of the upper urinary tract, particularly of the ureter, is an extremely rare entity. We are reporting on the first case of metachronous appearance in one patient. The 71-year-old man underwent partial ureterectomy (R0 resection) for primary adenocarcinoma of the left distal ureter. 3 years later, nephroureterectomy had to be performed because of metachronous primary adenocarcinoma of the left proximal ureter. Extensive examinations revealed no evidence for further malignancies at both times. Primary adenocarcinoma of the upper urinary tract is rare but should be kept in mind, especially in patients with chronic inflammation and urinary tract obstruction. Due to the low incidence, there is a lack of data regarding its pathogenesis, diagnosis, and optimal treatment.
authors: Department of Urology, Cantonal Hospital St. Gallen, Rorschacherstraße 95, 9007 St. Gallen, Switzerland.
authors: Dominik
authors: D
authors: Abt
authors: Department of Urology, Cantonal Hospital St. Gallen, Rorschacherstraße 95, 9007 St. Gallen, Switzerland.
authors: Gautier
authors: G
authors: Müllhaupt
authors: Department of Urology, Cantonal Hospital St. Gallen, Rorschacherstraße 95, 9007 St. Gallen, Switzerland.
authors: Livio
authors: L
authors: Mordasini
authors: Institute of Pathology, Cantonal Hospital St. Gallen, Rorschacherstraße 95, 9007 St. Gallen, Switzerland.
authors: Pierre André
authors: PA
authors: Diener
authors: Department of Urology, Cantonal Hospital St. Gallen, Rorschacherstraße 95, 9007 St. Gallen, Switzerland.
authors: Hans-Peter
authors: HP
authors: Schmid