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目的:探讨上皮性膀胱肿瘤的CT分期和早期诊断。兼论肿瘤基底强化线的病理基础。材料与方法:经手术或活检证实的上皮性膀胱肿瘤53例,男47、女6例。81％在50岁～80岁之间,最小28岁。主诉血尿49例(占92％)伴排尿困难、膀胱激惹征各17例。50例手术切除或电切。病理结果除乳头状腺瘤,低分化鳞癌各1例外,其余均为移行上皮癌。可确定临床分期45例:T_1期4例、T_217例、T_320例、T_44例。全部作CT平扫和增强扫描,部份追加延迟充盈相扫描。结果:上皮性膀胱肿瘤CT诊断依据是局限性肿物或不规则膀胱壁增厚,轻度到中度强化;显示肿瘤基底强化线的T_14例中有3例、T_217例仅2例、T_3、T_4未见。该线消失提示肿瘤已侵犯至外肌层。结论:(1)CT增强扫描是确诊本病的重要手段之一;(2)CT对本病临床分期虽有一定限度,但基底强化线存在与否对临床分期有所帮助。
Objective: To investigate the CT staging and early diagnosis of epithelial bladder tumor. Concurrently on the pathological basis of tumor basement strengthening line. Materials and Methods: 53 cases of epithelial bladder tumor confirmed by surgery or biopsy, 47 males and 6 females. 81% are between the ages of 50 and 80 and the youngest is 28. 49 cases of hematuria (92%) complained of dysuria and 17 cases of bladder irritation. 50 cases of surgical resection or resection. Pathological results in addition to papillary adenoma, poorly differentiated squamous cell carcinoma in 1 case, the rest are transitional cell carcinoma. 45 cases can be determined clinical stage: T_1 4 cases, T_217 cases, T_320 cases, T_44 cases. All CT scan and enhanced scan, some additional delayed filling phase scanning. Results: The CT diagnosis of epithelial bladder tumor was based on limited or irregular bladder wall thickening, mild to moderate enhancement. T-14 cases showed three cases of tumor basal enhancement line, T 2 cases of only 2 cases, T 3, T_4 not seen. The disappearance of the line prompted the tumor has been violated to the outer muscular layer. Conclusion: (1) CT enhanced scan is one of the important means to diagnose the disease. (2) Although the clinical stage of CT is limited to some extent, the existence of basal enhancement line may help clinical staging.