fig1
Figure 1. Lymph nodes of the submandibular area according to Rouviere’s classification. AVF: Anterior Facial Vein; SM: submandibular Vein; SG: submandibular Gland; A: prevascular node a.k.a. Node of Stahr; B: retrovascular node; C: preglandular node; D: retroglandular node; E: intraglandular nodes. A+B aka Perifacial nodes; A+B+C+D aka Perimarginal nodes.