A carcinoma in the medial portion of the lower lip is most likely to first metastasize via which of the following lymph nodes?
A. Submandibular lymph nodesB. Parotid lymph nodes
C. Superficial cervical lymph nodes
D. Submental lymph nodes
Answer. D.
Submental lymph nodes
• Lymph from the medial portion of the lower lip preferentially
drains through the submental nodes in the chin and metastases may first appear
here.
• Lymph from the upper lip and lateral portions of the lower lip drains
preferentially through the submandibular nodes on the inferolateral aspect of
the mandible.
• The parotid nodes
receive lymph from upper and lateral regions of the face including the
forehead, eyelids, and middle ear,
• Superficial and deep cervical nodes receive lymph from other nodes including
the parotid and retroauricular. Buccal lymph nodes drain the cheeks and sides
of the nose.
