Table 4.

Dermoscopic Features of 40 Invasive cSCC by Histopathologic Degree of Differentiation

Characteristica	High (n = 21)	Intermediate (n = 12)	Low (n = 7)	P
Vascular structures
Dotted	1 (4.8)	0 (0)	0 (0)	.63
Hairpin-like	1 (4.8)	1 (8.3)	0 (0)	.72
Glomerular	3 (14.3)	0 (0)	0 (0)	.23
Linear irregular	12 (57.1)	7 (58.3)	5 (71.4)	.79
Polymorphous	4 (19.0)	4 (33.3)	2 (28.6)	.64
Vascular arrangement
Diffuse	9 (42.9)	7 (58.3)	0 (0)	.04
Clustered	0 (0)	0 (0)	0 (0)	-
Peripheral	11 (52.4)	5 (41.7)	7 (100)	.04
Features of keratinization
Scales	15 (71.4)	6 (50.0)	2 (28.6)	.11
Keratin clods	13 (61.9)	7 (58.3)	3 (42.9)	.68
White circles	18 (85.7)	8 (66.7)	2 (28.6)	.02
Central keratin plug	4 (19.0)	1 (8.3)	0 (0)	.37
Erosions and ulcerations
None	3 (14.3)	1 (8.3)	0 (0)	.54
Erosions	3 (14.3)	1 (8.3)	0 (0)	.54
Ulcerations	15 (71.4)	10 (83.3)	7 (100)	.25
Background color
White	1 (4.8)	0 (0)	0 (0)	.63
Pink	4 (19.0)	3 (25.0)	1 (14.3)	.84
Red	2 (9.5)	2 (16.7)	0 (0)	.50
Pigmented	1 (4.8)	0 (0)	0 (0)	.63
Mixed	13 (61.9)	7 (58.3)	6 (85.7)	.44

^aValues are n (%).