结论星形细胞肿瘤的术中细胞学涂片结构清晰、诊断准确、分级可靠，与术中冷冻切片相比有一定的优势。

Conclusion the intraoperative cytological diagnosis is exact and its grading diagnosis is also reliable, and it can replace the frozen section.

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结果：68例患者中，7例(10.3%)术中冷冻切片证实有一侧输尿管残端异常，其中6例为恶性肿瘤细胞侵润，1例为移行上皮不典型增生。

Results: 7 of 68 patients (10.3%) had evidence of ureteral abnormality on frozen section, 1 of 7 was mild atypia, other 6 was carcinoma in situ involving the distal ureter.

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喉肿瘤；喉切除术；冷冻切片；切缘。

Tumor of larynx; Laryngectomy; Frozen section; Incised margin.

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