Presentation
Normal imaging example.
Patient Data
Normal imaging of the neck.
Initial floor of mouth / level 1 images, moving down in midline over hyoid bone (into level 6) and laryngeal structures.
Transverse and longitudinal images of the thyroid, including cervical esophagus behind the left lobe.
Systematic review of nodal stations including level 1 on the right (pivoting the probe into longitudinal position to examine deep to mandible), submandibular gland then level 2.
The carotid bifurcation is a marker for the margin of level 2 and 3. Level 4 starts when the omohyoid crosses the anterior surface of the internal jugular vein. On occasion, parts of the brachial plexus can be identified in the supraclavicular fossa, running proximally to the cervical spine.
Level 2B sits deep to mylohyoid posterior to the edge of the IJV, with level 5 posterior to the free edge of sternocleidomastoid.
Parotid imaging can be performed longitudinally with a convex field, and at a lower frequency to delineate the deep lobe.
Case Discussion
Normal neck ultrasound.
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