Vitiligo is an autoimmune disease which causes the loss or inactivation of pigment producing cells in the skin, resulting in light or white patches of skin and hair.

Stasis dermatitis is a type of eczema that develops on the lower legs as a result of poor circulation.

Sarcoidosis is an inflammatory condition where the immune system goes into overdrive, creating clusters of inflamed tissue called granulomas to form in different parts of the body.