[A case of nephrogenic metaplasia (or nephrogenic adenoma) of the bladder]

Aside to a case report, we describe the nephrogenic adenoma an unusual modification of the urothelium of the bladder elicited by chronic irritation. We review the criteria of diagnosis of this disease, which only rely on histopathological examination. Though being a benign lesion, nephrogenic adenoma requires a long term follow-up.