Epithelial Bladder Neoplasm; the Correlation with CT and Clinical Staging with Discussing the Enhanced Basic Line

Purpose: To study CT staging in epithelial bladder neoplasm and discuss pathological fundamental of the enhanced basic line of tumor. Material and Methods: 53 cases, 47 males and 6 females, with epithelial bladder tumor confirmed by surgery or biopsy were studied. The age of 81% cases was 50 to 80, and the youngest is 28. The common complaint was hematuria (49 cases) and dysuria and bladder irritability (17 cases respectively). The pathological diagnosis is transmigrative epidermoid cancer except 1 case with papillary adenoma and another case with poorly differentiated squamous cell carcinoma. The clim-cal staging can be determined in 45 cases: T14 cases, T2 17 cases, T3 20 cases and T4 4 cases. Plain and enhanced CT scan were performed in all cases and delayed scan was performed in some cases in filling phase. Results: The CT diagnosis of epithelial bladder neoplasm is based on local mass or irregular thickening of bladder wall, mild to middle degree of enhancement. The enhanced basic line could be seen in 3 of 4 T1 cases and in 2 of 17 T2 cases, none could be seen in T3 and T4 cases. Absence of the line indicates tumor invading into out layer of muscle. Conclusions: Enhanced CT scan is one of important methods of diagnosing epithelial bladder neoplasm. The enhanced basic line is helpful to staging the disease.