Figure 2.

Cervical lymph node recurrence rates (black dots and stars) among 13 different PTMC cohorts and novel LNM rates (red dots) in AS groups. With < 10-year follow up, 5 PTMC cohorts had relatively higher lymph node recurrence than novel LNM rate in AS patients because all of these 5 cohorts had small group of PTMC with gross ETE and/or clinical apparent lymph node (detail seen Table 5). The lymph node recurrence rates of “low-risk” cohorts (black stars), which excluded patients with gross ETE and clinical apparent lymph node, were relatively less than novel LNM rates in AS groups.