*The lymph nodes of the neck can be divided into six levels within the defined anatomic triangles. These groups and the areas that they drain are particularly important when locating and working up a "neck mass" or possible malignancy. The groups and drainage areas are as follows:
I--Submental and submandibular nodes
II--Upper jugulodigastric group
III--Middle jugular nodes (draining the nasopharynx and oropharynx, oral cavity, hypopharynx, larynx.
IV--Inferior jugular nodes draining the hypopharynx, subglottic larynx, thyroid, and esophagus.
V-- Posterior triangle group
VI--Anterior compartment group
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*Here are a few questions related to the neck lymph nodes, try answering them :
1q: Lymph nodes metastases from oropharyngeal cancers most commonly occur at ?
a. Level I
b. Level II
c. Level III
d. Level IV
e. Level V
2q: Which of the following are the level III lymph nodes of the neck ?
a. Upper jugular chain nodes
b. Middle jugular chain nodes
c. Lower jugular chain nodes
d. Posterior triangle nodes
e. Submental nodes
3q: A lymph node that is inferior to the cricoid, superior to the clavicle and deep to the sternocleidomastoid muscle (SCM) in what level ?
a. Level I
b. Level II
c. Level III
d. Level IV
*These questions have been taken from Page 126 of the Schwartz's principles of surgery (8th ed) - self-assesment and review .
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