1. Size short axis : less or more than 1cm
2. Shape : Oval or round ; when ratio of short axis vs . long axis of lymph node is smaller than 1.5cm , the lymph node defined as round. If ration more than 1..5cm it is oval.
3. Margin indistinct or distinct : if more than 50% is clearly visible with a high echoic border they are distinct . If less than 50% and margin unclear determined indistinct.
4.Echogenecity; Homogenous or heterogenous.
5. Presence or absence of central hilar structure CHS
CHS defined as linear flat hyperechoic area in the center of lymph node which indicate prediction of metastatic L node