Lines radial peripheral or segmental pseudopods

Peripheral lines radial represents nests of growing melanocytes at the edge of a pigmented lesion. A Reed nevus shows the phenomenon best with all the circumference being involved. If only part of the circumference is involved think of a melanoma. 

Peripheral lines radial especially if close inspection shows they are composed of dots is a feature of pigmented IEC (Bowen's disease). 

Peripheral lines radial , segmental meeting at one point is a feature of BCC. (spoke wheel in Menzies terminology).

Ocassionally some seborrhoeic keratoses which are very dark can have peripheral lines radial (or streaks).
Segmental Pseudopods are highly specific for melanoma. The only other condition to consider is a Spitz or Reed nevus.

Look at some of the examples of these features below.