F2Ch5 (106043): The epidermis is hyperplastic; both a basal and a superficial unit are represented. Near the center of the field, some of the basal cells show an acentuation of cytoplasmic acidophilia at the junction with the basement membrane. There is focal, mild liquefaction degeneration at the D-E interface. Also near the D-E interface, coarse, straight, acidophilic collagen bundles extend to the basement membrane zone. Away from the area of condensed collagen bundles, the bundles are thinner and loosely spaced in a faintly myxoid matrix. The connective patterns away from the adventitial domains are evidence of collagenolysis but also represent an accentuation of a basophilic (myxoid) matrix. Conceptually, the patterns could be accommodated in the category of connective activation.
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