Final answer:
Psoriasis is the secondary lesion appearing as round, dry patches of skin covered with rough, silvery scales.
Step-by-step explanation:
The secondary lesion appearing as round, dry patches of skin covered with rough, silvery scales is called . Psoriasis is a chronic skin disease characterized by red, inflamed patches of skin with thick, silvery scales. It commonly affects areas such as elbows, knees, scalp, back, face, palms, and feet.