Most simple way to remember:
L1: Bounded by digastric, mandible and hyoid. Submental and submandibular.
L2: Skull base to hyoid. Upper jugular
L3: Hyoid to cricoid. Mid jugular
L4: Cricoid to clavicale. Lower jugular
L5: Bounded by SCM, trepezius and clavicle. Posterior triangle. Divided into upper, mid and lower similar to the L2,3,4 levels
L6: Midline hyoid to sternoclavicular notch. Prelaryngeal, pretracheal and paratracheal
L7: Inferior to sternoclavicular notch. Upper mediastinal
Other groups: Suboccipital, retropharyngeal, parapharyngeal, buccinator (facial), preauricular, periparotid, intraparotid
Image gallery:
Click here for the external link or here in PDF
References:
AJCC Csncer staging handbook. 6th Edition. Springer
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Head and Neck Imaging Notes
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Although I have taken care to make my blog posts as accurately as possible, the blog itself is not replacement for text-books and journals. The blogger does not accept any harm or injury related to the use of the material from this blog. All the images are from my collection and are not copyrighted; hence feel free to use them and I do not want any credit also. The notes are from the quoted journals and text-books, relevant to my practice. If anybody feels I am violating copyright, please let me know. I will delete the relevant data from my blog. I am greatly indebted to the reference book Som PM et al, Head and Neck Imaging. 4th edition. Mosby publications. Unless given the reference, the reference is most likely to this book.
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