Which condition is associated with "dinner plate" lesions?

The term "dinner plate" lesions is specifically associated with granuloma annulare. These lesions are characterized by their distinctive appearance, which can resemble the size and shape of a dinner plate. Granuloma annulare typically presents as smooth, skin-colored or slightly erythematous papules that arrange themselves in a ring or annular formation, and they often have a raised border with a clear center.

Granuloma annulare is considered a benign condition and is thought to be related to a hypersensitivity reaction, although the exact cause is not well understood. It most commonly appears on the backs of the hands, feet, and the ankles but can also occur elsewhere on the body. Importantly, the lesions are not associated with the same patterns or characteristics that are seen in the other listed conditions, such as psoriasis, eczema, or contact dermatitis.

In contrast, psoriasis usually presents with well-demarcated, erythematous plaques covered with silvery scales, while eczema and contact dermatitis are associated with itchy, red, and inflamed skin but do not develop into the "dinner plate" lesion appearance characteristic of granuloma annulare. Understanding these key differences helps in recognizing and diagnosing each skin condition appropriately.