Keloidal Scleroderma: Case Report and Review

Figure 2

Keloidal scleroderma. Histologic sections show an acanthotic epidermis with overlying basilar hyperpigmentation. Within the dermis there is a proliferation of myofibroblasts and thickened collagen bundles. There is a lack of vertically oriented blood vessels and a lack of atrophy of the overlying epidermis speaking against that of a keloid or scar. At low power (2x) biopsy has a barrel-shaped appearance. The dermal component is expansile and extends beyond that of the epidermal component.