Level IB lymph nodes

What is Level IB lymph nodes?

Level IB lymph nodes meaning Lymph nodes within the boundaries of the anterior and posterior bellies of the digastric muscle and the body of the mandible. Includes the following lymph nodes: Sublingual lymph nodesSubmandibular (submaxillary) lymph nodes

 

reference: national Cancer Institute – Glossary for Registrars

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