引用文本：王利明, 常慧静, 彭畔新, 等. 心下囊在食管胃结合部癌手术中的意义[J/CD]. 消化肿瘤杂志（电子版）, 2026, 18(1): 65-68.

作者：王利明，常慧静，彭畔新，陈瑛罡

单位：国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院北京协和医学院肿瘤医院深圳医院胃肠外科，广东 深圳 518116

Authors：Wang Liming, Chang Huijing, Peng Panxin, Chen Yinggang

Unit：Department of Gastrointestinal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, Guangdong, China

摘要：

行食管胃结合部癌手术时，在食管右侧与右侧膈肌之间常可发现1个狭小的封闭空间，称为心下囊（infracardiac bursa, ICB）。ICB在胚胎时期从网膜囊头侧分离而形成，是在绝大多数成人中均可见的独立狭小腔隙，其内壁间皮细胞下层可见丰富的淋巴管网，但ICB的外侧并无明显淋巴结分布，提示其可能作为下纵隔淋巴结清扫的右侧边界。本文旨在介绍ICB的胚胎学形成机制、其与食管裂孔周围区域淋巴结的解剖关系以及在食管胃结合部癌手术中的临床意义。

关键词：心下囊；食管胃结合部；下纵隔淋巴结清扫；解剖标志；手术入路

Abstract：

During surgery for esophagogastric junction (EGJ) cancer, a narrow enclosed space, termed the infracardiac bursa (ICB), can often be identified between the right side of the esophagus and the right diaphragmatic crus. The ICB, formed during embryonic development by separating from the cephalad aspect of the omental bursa, is a small independent cavity observable in most adults. Its inner wall exhibits a rich lymphatic network beneath the mesothelial layer. However, the lateral wall of the ICB itself shows no significant lymph node distribution, suggesting its potential role as the right lateral boundary for lower mediastinal lymph node dissection. This article aims to introduce the embryological formation mechanism of the ICB, its anatomical relationship with the regional lymph nodes surrounding the esophageal hiatus, and its clinical significance in EGJ cancer surgery.

Key words：Infracardiac bursa; Esophagogastric junction; Lower mediastinal lymph node dissection; Anatomical landmark; Surgical approach

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