Can ratio of the biggest tumor diameter to total tumor diameter be a new parameter in the differential diagnosis of agressive and favorable multifocal papillary thyroid microcarcinoma?
The ratio of primary tumor diameter to total tumor diameter (TDR) in PTMC was evaluated. TDR was lower in patients with capsular and lymphovascular invasion, ETE and LNM. TDR might be helpful for the detection of aggressive behavior in multifocal PTMCs.