Rare Neuroendocrine Tumor of the Bladder: A Case Report.

Well-differentiated neuroendocrine tumors (WD-NETs) of the bladder are notably rare, representing only a small subset of neuroendocrine malignancies in this organ. We present a case of an asymptomatic 67-year-old Hispanic male in whom a WD-NET was incidentally identified during routine surveillance cystoscopy, six months following anterior urethroplasty with a buccal mucosal graft. The patient underwent two transurethral resections of the bladder tumor (TURBT). This case highlights the diagnostic challenges associated with WD-NETs given their rarity and reinforces the need for clinical awareness, even in patients without typical risk factors or symptoms.