Lymphatic drainage of the tongue and the soft palate

Abstract

To understand the lymphatic drainage patterns of the tongue and the soft palate with radiographs and photographs. Tissues of the tongue, the laryngopharynx, the trachea, and the esophagus from six unembalmed human cadavers were studied. Six percent hydrogen peroxide was used to find the vessels. They were injected with a radio-opaque mixture, dissected, photographed, and radiographed. Final results were transferred to a computer for analysis. Four collecting lymphatic vessels were found. They are apical draining into the submandibular and/or submental nodes, anterolateral draining into the submandibular node, posterolateral draining into the submandibular and/or subdigastric nodes, and phary..