2016_Head & Neck COURSE BOOK

Normal lymph nodes: characteristics?

Neck lymph nodes

 +/- 300 in H&N  Differentiation – Normal – Abnormal

 Small  Oval (kidney bean)  Hilus: present  Cortex: homogenous  Vascularity: hilar

 Modalities

– US , CT, MR

Abnormal lymph nodes: characteristics?

Normal

 Enlarged  Round  Hilus: absent

 Cortex: heterogenous  Vascularity: peripheral

Ahuja AJNR 2001

US: Neck lymph nodes

Abnormal

Localisation: level system

Characterisation: ?

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