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  • Title: A rich lymphatic network exists in the inferior surface of the vocal cord.
    Author: Liu YH, Xu SC, Tu LL, Zhang KL, Lu DH, Zhang M.
    Journal: Surg Radiol Anat; 2006 May; 28(2):125-8. PubMed ID: 16479361.
    Abstract:
    Conservation laryngeal surgery is an increasingly available alternative for the treatment of laryngeal cancer. Understanding anatomy of laryngeal lymph drainage is essential for clinicians to diagnose, grade and surgically manage the laryngeal cancer. Although the lymphatic drainage of the larynx has been extensively studied, few studies revealed the relationship of the lymphatic drainage between various parts of the larynx. The distribution of lymphatic vessels in the inferior surface of the vocal cord also remains unclear. The aim of this study was to investigate the communication of the lymphatic networks between the vocal cord, the supraglottic and subglottic parts of the larynx, paying special attention to the lymphatic drainage of the inferior surface of the vocal cord. Eighteen larynx specimens from 18 fresh fetal cadavers were manually injected with prassion blue solution into the mucosal or submucosal layer of the larynx in order to reveal the lymphatic vessels in the inner larynx. We found that a rich lymphatic network is present in the inferior surface of the vocal cord, and the lymphatic networks in the superior and inferior surfaces of the vocal cord appear as two different patterns. These findings provide an anatomical basis for the design of a partial or conservation laryngeal surgery, particularly when considering the precise resection margin.
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