132例多原发癌临床分析 关；(3）癌灶间必须有一定距离的正常组织；(4）一个肿瘤必须排除为其它肿瘤的转移灶。两癌间隔时间在6个月内为同时性癌（Synchronous MPC,SC），6个月之外为异时性癌（Metachronous MPC，MC）。 1.3 统计学处理
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个月内为同时性癌 Synchronous MPC
侧同时性乳腺癌 bilateral synchronous breast cancer ; BSBC
称为双侧同时性乳腺癌 bilateral synchronous breast cancer
同时性双侧乳腺癌 bilateral synchronous breast cancer ; BSBC
·2,447,543篇论文数据，部分数据来源于NoteExpress
单发癌患者中有11·6%合并腺瘤、合并多发息肉者42·2%；同时性癌患者中合并腺瘤者34·8%，合并多发息肉者78·3%，两组差异有统计学意义。
The frequencies of complicating adenoma and multiple polyps in synchronous cases were higher significantly than those in single cases, with the rate of 34.8% and 78.3%, 11.6% and 42.2%, respectively.
方法：回顾分析5例同时性喉重复癌诊断经验。
Method: The clinical data of 5 patients with laryngeal synchronous multiple primary carcinoma were analyzed retrospectively.
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