At high magnification , the normal colonic epithelium at the left contrasts with the atypical epithelium of the adenomatous polyp at the right 高倍镜：左侧为正常的结肠粘膜上皮，与之相比右侧为腺瘤性息肉的非典型增生上皮。
Topics covered include approaches to the frontal sinus , surgery of massive polyposis , motorized instrumentation , and endoscopic management of cerebral spinal fistulas 本系列教程的主题包括进入额窦的路径大块息肉的手术电动手术器械操作和脑脊液漏的内窥镜处理。
In 1997 , andrews underwent an operation to remove a polyp from her vocal chords . the surgery left her singing voice damaged , and she sued the doctors for malpractice 1997年安德鲁斯进行了声带息肉的切除手术。然而手术破坏了她的声音，她以医生的玩忽职守提出了诉讼。
Conclusion ultrasonic approach is the first choice for diagnosis low segment ureteral polyp , and it is more valuable in patients complicated with x - ray negative stone , difficult for retrograde urethrography and allergy to iodine 结论超声是输尿管下段息肉的首选筛查方法，对合并阴性结石、逆行造影困难、碘过敏者更具有价值。
