title: A rare case of synchronous renal cell carcinoma of the bladder presenting with gross hematuria.
abstract: A 57-year old man was referred to the Urology Department due to gross hematuria; abdominal ultrasound revealed an unspecific solid tumor of the left bladder wall. Ultrasound, transurethral resection of the bladder mass with subsequent histological analysis, thoracic and abdominal computed tomography-scan and brain magnetic resonance imaging were performed. He was diagnosed with a bladder metastasis of clear cell renal cell carcinoma (RCC) with concomitant bone, pulmonary, and cerebral metastatic disease of a primary RCC of the right kidney.
  
  
  RESULTS
  Transurethral resection of the bladder mass, cerebral and bone radiotherapy, removal of the primary tumor, targeted systemic therapy with mTOR followed by tyrosine kinase inhibition.
authors.affiliation: Departments of Urology.
authors.forename: Stephan
authors.initials: S
authors.lastname: Kruck
authors.forename: Marcus
authors.initials: M
authors.lastname: Scharpf
authors.forename: Arnulf
authors.initials: A
authors.lastname: Stenzl
authors.forename: Jens
authors.initials: J
authors.lastname: Bedke
keywords: bladder metastasis; hematuria; renal cell cancer; transurethral resection