Table 3 Univariate analysis showing clinical and dermoscopic characteristics significantly related to different variants of dermatofibroma

CFDF

None

Peripheral pigment network and central white patch

<0.001

Homogeneous pigmentation and peripheral pigment network

0.005

Lentigo-like pattern

0.03

Total homogeneous pigmentation

0.02

Atrophic DF

Localization on the lower limbs

0.002

Patchy pigment network and multiple white patches pattern

0.01

Aneurysmal DF

Male sex

0.03

Vascular structures (linear irregular vessels)

0.04

Big size of lesions

0.04

White ring around an ulceration

<0.001

Hemosiderotic DF

Pink coloration

0.004

Vascular structures (dots and comma-like vessels)

0.002