The posterior division of the suboccipital, and the medial branches of the posterior division of the second and third cervical nerves are sometimes joined by communicating loops to form the posterior cervical plexus.
12.
It does not include removal of the suboccipital nodes, periparotid nodes except for infraparotid nodes located in the posterior aspect of the submandibular triangle, buccal nodes, retropharyngeal nodes, or paratracheal nodes . 4
13.
This groove transmits the vertebral artery, which, after ascending through the foramen in the transverse process, winds around the lateral mass in a direction backward and medially to enter the vertebrobasilar circulation through the foramen magnum; it also transmits the suboccipital nerve ( first spinal nerve ) ..
14.
For example, in 1996, Arnautovic et al ., summarizing the results of their own work and that of others, stated : " In addition to confirming that the vertebral venous plexus is a direct continuation of the cranial venous sinuses, our study showed that it is also indirectly connected to these sinuses via the suboccipital cavernous sinus.
15.
This removes lymph tissue contained in regions I-III . The posterior limit of the dissection is marked by the cutaneous branches of the cervical plexus and the posterior border of the SCM . The inferior limit is the superior belly of the omohyoid muscle where it crosses the IJV . The second subtype, posterolateral neck dissection, refers to the removal of the suboccipital lymph nodes, retroauricular lymph nodes, levels II-IV, and level V . This procedure is used most often to remove nodal disease from cutaneous melanoma of the posterior scalp and neck . 4 Originally described by Rochlin in 1962, the SAN, SCM, and IJV were preserved.
