Mottling and solar lentigenes are forms of:

Mottling and solar lentigines are both associated with changes in skin pigmentation, particularly as a result of sun exposure. Solar lentigines, often referred to as age spots or liver spots, are flat, brown spots that develop on sun-exposed areas of the skin due to accumulated UV damage over time. Mottling can refer to a variety of pigmentation variances, often presenting as areas of patchy color.

Vitiligo specifically involves the loss of pigmentation, leading to clearly defined white patches on the skin. This condition occurs due to the destruction of melanocytes, the cells responsible for producing melanin. While mottling can refer to uneven pigmentation, in this context, both mottling and solar lentigines relate to pigmentation alterations, specifically in how they can occur due to environmental factors like sun exposure. Thus, their connection to vitiligo lies in the general discussion of pigmentation disorders, making it a relevant and valid answer in this case.

Other conditions like psoriasis, eczema, and dermatitis involve different mechanisms and manifestations related to inflammation, skin cell turnover, or allergic reactions, making them unrelated to the specific pigmentation issues presented in the question. Therefore, identifying vitiligo as the answer emphasizes the connection between skin changes related to