In 150 patients of the VE group, 139 (92.27%) had a benign clinical symptoms, while in the LE group, 54/63 (85.71%) patients had an aggressive clinical symptoms (p>0.001).

There was a slight trend to more aggressive symptoms in the DE group (42/67) without statistical significance (p=0.225). 9/16 patients in the mixed VE+DE group also had benign clinical symptoms, the one patient with the mixed VE+LE group and 1 of the 2 patients with the mixed DE+LE group had aggressive clinical symptoms.