Keloid
LEGEND
Increased density and caliber of collagen fibers
Hyalinized, thickened collagen fibers, arranged randomly in the dermis (both parallel and perpendicular to the epidermis)
Keloid
LEGEND
Hyalinized collagen fibers (pink), thickened and homogeneous
Keloid

Collagen fibers with fibroblasts – high magnification
Keloid

Slightly mucinous stroma (bluish-gray network)
Keloid
LEGEND
Presence of blood vessels, some of which are oriented almost vertically