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内翻性乳头状瘤是一种少见的膀胱肿瘤。同济医院泌尿外科将8年来共收治膀胱肿瘤159例,术后经病理检查证实为内翻性乳头状瘤者6例(3.77％)进行了分析讨论。6例中,男4,女2。平均年龄40.9岁。均有血尿史,最长者3年,最短者2个月。其临床症状无特异性,易误诊为其他增生性病变或癌,本组6例术前均误诊为乳头状癌。但其膀胱镜下表现及病理结构具有一定特点:①肿瘤表面呈分叶结节状或粗短的乳头状,有的呈实体状;②肿瘤基底部有较粗的蒂,使瘤体不易飘动;③肿瘤表面因被覆粘膜上皮而有光泽和光滑感。显微镜下观察,肿瘤由形态较为一致的基底细胞样瘤细胞组成,排列成迂回弯曲的束状结
Inverted papilloma is a rare bladder tumor. Tongji Hospital, Department of Urology, a total of 159 cases of bladder cancer over the past 8 years, postoperative pathological examination confirmed as inverted papilloma in 6 cases (3.77%) were analyzed and discussed. 6 cases, male 4, female 2. The average age of 40.9 years old. Have a history of hematuria, the longest 3 years, the shortest 2 months. The clinical symptoms of non-specific, easily misdiagnosed as other proliferative lesions or cancer, the group of 6 preoperative misdiagnosed as papillary carcinoma. However, the performance of cystoscopy and pathological structures have certain characteristics: ① tumor surface lobulated nodular or stubby papillary, and some were solid-like; ② the base of the tumor has a thick pedicle, the tumor is not easy to float ; ③ the surface of the tumor due to coated mucosal epithelial shiny and smooth feel. Microscopically, the tumor consisted of basal cell-like tumor cells that were more consistent in morphology and were arranged in a meandering bundle