Acne Types: Whiteheads Blackheads Papules acne Pustule ... appear as dark dots in the skin. "Oxidation of the trapped ...

A 45-year-old Caucasian female presented with a rapidly changing "black mole ... melanoma. Skin examination showed an 8 mm × 10 mm irregularly shaped two-toned brown papule with ill-defined ...

who laid the cornerstone for modern dermatology by delineating such basic terms as papules and macules and providing concrete definitions. Although others had provided classifications of skin ...