Risk Stratification of Cervical Lymph Nodes Metastasis for Thyroid cancer

Pre-OP/Post-OP Pre-Op Post-OP
Size (short diameter) cm
 Cystic change yes
 Calcification micro macro
 Cortical hyperechogenicity no (default) focal diffuse
 Loss of central hilar echo yes
 Loss of central hilar vascularity
   Abnormal vascularity:
   peripheral    diffuse

Note: essential data for all cases (the diameter must be >0.2 cm).

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