Final answer:
Depigmented patches of skin can be indicative of various conditions or diseases such as vitiligo, Addison's disease, and albinism.
Step-by-step explanation:
Depigmented patches of skin can be indicative of various conditions or diseases. One possible diagnosis is vitiligo, which is a condition where individuals experience depigmentation that results in lighter colored patches of skin. Another possible diagnosis is Addison's disease, which is characterized by hyperpigmentation of the skin. Additionally, depigmented patches of skin can also be a sign of albinism, a genetic disorder that affects the coloring of skin, hair, and eyes. In albinism, the lack of melanin production leads to a lack of pigmentation in the skin.