Nephrogenic adenoma in the unused bladder of a hemodialysis patient; report of a case

Abstract

A 43-year-old male who had been maintained on chronic hemodialysis for fourteen years came to our hospital complaining of urethral bleeding. Bladder fiberscopy showed widespread mucosal mossy change, and biopsy revealed nephrogenic adenoma with chronic inflammation. Sixteen cases of nephrogenic adenoma of the bladder previousely reported in the Japanese literature, and our own case, are reviewed and the pathogenesis of this abnormality is discussed.