Which condition is characterized by epidermal hyperplasia and increased epidermal turnover?

Psoriasis is characterized by epidermal hyperplasia and increased epidermal turnover. This condition is a chronic inflammatory skin disease that accelerates the life cycle of skin cells, leading to the rapid proliferation of keratinocytes in the epidermis. In psoriasis, there is a decrease in the time it takes for skin cells to move from the basal layer to the stratum corneum, which typically results in thicker, scaly plaques, and red patches on the skin.

The hallmark features of psoriasis include well-demarcated plaques with silvery scales, which arise from this increased turnover and hyperplasia of the epidermis. The skin inflammation associated with psoriasis is also due to the underlying immune dysregulation, which contributes to the pathological changes observed in the skin.

In contrast, conditions like atopic dermatitis and tinea corporis do not primarily exhibit the same level of epidermal hyperplasia or turnover. Atopic dermatitis tends more towards a thinning of the epidermis and chronic inflammation rather than significant epidermal hyperplasia. Tinea corporis, a superficial fungal infection, primarily presents with scaling and erythema but does not involve the increased turnover characteristic of psoriasis. Ecthyma is a deeper skin infection that involves ulcerative lesions, but it does not have the