Which of the following describes a form of hypopigmentation affecting the entire body?

Albinism is a hereditary condition characterized by a complete lack of melanin production in the skin, hair, and eyes, resulting in a noticeable absence of pigment throughout the entire body. This genetic disorder affects all areas of the skin, leading to a consistent hypopigmented appearance. Individuals with albinism often have sensitivity to sunlight and an increased risk of skin cancer due to the lack of protective melanin.

In contrast, conditions like vitiligo and leukoderma involve specific patches or areas of skin losing pigmentation, rather than the entire body. Pityriasis refers to a group of skin conditions that can cause temporary changes in skin appearance but do not result in the global lack of pigment seen in albinism.