J Min Access Surg Close
 

Figure 2: Intra-operative view for Level 1 dissections. (a) Level 1a nodes are dissected. The left diverticulum and right diverticulum anterior bellies of digastric muscle are exposed. (b) Level 1b nodes are dissected. The lingual nerve, hypoglossal nerve, mylohyoid muscle and submandibular gland are exposed. (c) The marginal mandibular nerve is identified and preserved. (d) The facial artery, facial vein and the posterior belly digastric muscle with tendon are observed. Dissection proceeds in posterior to anterior fashion

Figure 2: Intra-operative view for Level 1 dissections. (a) Level 1a nodes are dissected. The left diverticulum and right diverticulum anterior bellies of digastric muscle are exposed. (b) Level 1b nodes are dissected. The lingual nerve, hypoglossal nerve, mylohyoid muscle and submandibular gland are exposed. (c) The marginal mandibular nerve is identified and preserved. (d) The facial artery, facial vein and the posterior belly digastric muscle with tendon are observed. Dissection proceeds in posterior to anterior fashion