Preferred Label : Neck Lymph Node Boundary Sublevel IA;
NCIt definition : The following anatomical structures define the neck lymph node boundary for sublevel
IA: Superior: symphysis of the mandible; inferior: body of the hyoid; anterior (medial):
anterior belly of the contralateral digastric muscle; posterior (lateral): anterior
belly of the ipsilateral digastric muscle. (AJCC 8th ed.);
NCI Metathesaurus CUI : CL521212;
Origin ID : C132495;
UMLS CUI : C4330809;
Anatomic structure is physical part of
Semantic type(s)