방광종양의 병기결정에서 경요도 초음파촬영술의 의의 = The Clinical Significance of Transurethral Ultrasonography in Bladder Cancer

다국어 초록 (Multilingual Abstract)

Successful management of patients with bladder tumors is dependent upon accurate staging. Most conventional imaging studies are associated with errors ranging from 40% to 50% , mainly in the form of the understaging of both superficial and deeply invasive carcinoma and are incapable of reliably demonstrating the degree of invasion into the muscle component of the bladder wall. Cystoscopy and tumor resection currently are both the most common and the accurate form of tumor staging. However, the distinction between superficial and deeply invasive cancer remains problematic.
The author staged bladder tumors preoperatively by transurethral ultrasonography in 15 patients. Comparison of ultrasonic and pathological stages showed concordance in 11 of 15 patients. In all understaged bladder tumors, the pathology showed microscopic tumor infiltration outside the tumor mass of the bladder wall. In conclusion, transurethral ultrasonography is valuable clinically because of its accuracy in local staging of bladder tumors.