Transitional cell carcinoma of the pelvicalices and ureter.

Transitional cell carcinoma accounts for about 90% of all cancers of the renal pelvis and more than 90% of all cancers of the ureter. Its clinical presentation is nonspecific. Radiology plays a critical role in detection, evaluation, and disease monitoring. We reviewed the pathologic and clinical features of transitional cell carcinoma of the upper urinary tract, with attention to its radiology appearance, staging, and treatment.