结论梨状窝癌对喉内的侵犯首先通过声门旁间隙；
Conclusions Intralaryngeal invasion of pyriform sinus carcinoma arose through paraglottic space first.
方法对68例梨状窝癌全喉或部分喉及下咽切除整体标本连续切片进行组织病理学研究。
Methods The whole organ serial section of 68 total or partial laryngectomy and hypopharyngectomy specimen of pyriform sinus carcinoma were histopathologically studied.
目的探讨梨状窝癌侵犯邻近组织的规律。
Objective To explore the regularity invading adjacent tissue of pyriform sinus carcinoma.
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