A 51-year-old white man was admitted to the hospital because of fever, weight loss, and several episodes of systemic embolization, manifested as sharp, left-sided flank pain with macrohematuria and ...

Hyperpigmentation is common in dark skin and occurs when an area of skin becomes darker than the surrounding skin. It is typically longer lasting and more challenging to treat in darker than lighter ...

There are two types of skin pigmentation disorders: hyperpigmentation, in which the skin produces too much melanin, and hypopigmentation, in which the skin produces too little melanin. Skin ...

Acne-related hyperpigmentation occurs when dark patches develop after a blemish has healed. Although hyperpigmentation is harmless, it can be frustrating to deal with. If you’re experiencing ...