An Asymptomatic Small-Cell Bladder Cancer Until Bilateral Ureteral Obstruction Happened

Abstract

Small-cell bladder cancer is a rare form and composes less than 1% of primary bladder malignancies. We present a case with a large small-cell bladder cancer leading to acute kidney failure clinic without gross hematuria. Computed tomography revealed that all the bladder walls were invaded by the extensive tumor and bilateral hydronephrosis. Double J stent for left side and nephrostomy tube for the right side were inserted, and bladder biopsy was taken by transurethral resection. Pathologic examination revealed small-cell bladder cancer. The patient did not accept chemotherapy. He died because of the acute renal failure 4 months later since the beginning.