Collagen: The abnormal scars shown are keloids, which result from excessive deposition of collagen in the extracellular matrix during wound healing. Overproduction leads to raised, firm, irregular scars (keloids).

Elastin: Provides elasticity to tissues; not the main component of keloid scars.

Fibrillin: Structural glycoprotein associated with Marfan syndrome, not keloid formation.

Laminin: Important in basement membranes, not excessive scar tissue.

Perlecan: A proteoglycan in basement membranes, not involved in keloid pathology.