Sunday, 19 June 2011

What is a mole?

Skin Mole
A mole is usually a dark pigmentation on the skin which can be found on any part of the body. Moles can vary in colour ranging from pink, brown to black. A skin mole can be either flat or raised. Some moles can also sprout hair which is common.
Cross section of a moleThe diagram beside shows a cross section of the epidermis and dermis which are the top and bottom layers of the skin. Melanocytes are the melanin producing cells which reside at the bottom of the epidermis. Melanin is the pigment that gives the skin, eyes and hair its colour. A mole can either be subdermal (under the skin)  or a pigmented area of the skin which is mostly due to the unusual build up of melanocytes on a concentrated area of the skin.

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