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Cervical Lymph Nodes Level 6

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Hello everyone. It's Dr. Sidney Levy.

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3 00:00:04,580 --> 00:00:08,150 Today, I'd like to discuss level 6 of the

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lymph node levels of the neck, otherwise known as the

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anterior compartment, or the prelaryngeal,

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pre- and paratracheal lymph nodes within the neck.

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I would like to use pre-contrast T1-weighted imaging

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to demonstrate the boundaries and landmarks that you

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need to be aware of in order to identify level 6.

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The first thing to remember is that

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level 6 is an anterior and medial level.

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Related to the visceral space, i.e.,

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the thyroid gland and adjacent structures.

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The most important landmarks are the common

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carotid or internal carotid arteries.

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Level 6 is bounded laterally and posteriorly

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by levels 2, 3, and 4.

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These are the common carotid arteries.

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So the first thing we need to be aware of

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is the medial margins of those.

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You may notice that in this particular study,

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there is abnormal soft tissue in the vicinity

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of the postcricoid space or hypopharynx.

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I won't discuss that any further as we cover it

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in another vignette, but this patient has a post-

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cricoid tumor, so that's why it looks abnormal.

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The other boundaries you need to be aware

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of are the superior and inferior boundaries.

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So on the sagittal projection,

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you're interested in the manubrium.

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It's here, and we go all the way up

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to the inferior margin of the hyoid.

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Hyoid is here.

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So anything which is medial to the common or internal

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carotid arteries, and is situated between the inferior

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margin of the hyoid and the manubrium, is within level 6.

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And lastly, let me draw that for you.

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This area here, which includes the visceral space, including

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midline lymph nodes when present, such as the Delphian lymph

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node, that all belongs in level 6 and is of particular

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consideration with thyroid, laryngeal, or pharyngeal tumors.

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In our next vignette, we will discuss level 7.

Report

Description

Faculty

Sidney Levy, PhD, MBBS

Radiologist and Nuclear Medicine Specialist

I-MED

Tags

Neuroradiology

Neuro

Neoplastic

MRI

Lymph Nodes

Head and Neck

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