[A case of tumors of the kidney and bladder with differing histology]

A case is presented being of interest because of the simultaneous development of two tumors at different sites of the urinary tract with different histologic structure. The patients, a 56 years old man entered the clinic on July 13, 1988 with painless hematuria. On examination, including intravenous urography, cystoscopy with transurethral echography and computer axial tomography, tumors of the right kidney and of the bladder were identified. The affected kidney was removed and the diagnosis was renal cancer (hypernephroma). A two-step transurethral resection of the bladder was also performed. The histologic diagnosis was moderately differentiated transient-cell carcinoma. The patient is under regular medical observation.