A skin lesion is a part of the skin that has an abnormal growth or appearance compared to the skin around it. Two categories of skin lesions exist: primary and secondary. ... Secondary skin lesions are the result of irritated or manipulated primary skin lesions.
Lesion Type (Primary Morphology)
1. Macules are flat, nonpalpable lesions usually < 10 mm in diameter. ...
2. Papules are elevated lesions usually < 10 mm in diameter that can be felt or palpated. ...
3. Plaques are palpable lesions > 10 mm in diameter that are elevated or depressed compared to the skin surface.
Secondary skin lesions are scales, crusts, excoriations, erosions, ulcers, fissures, scars, and keloids. Scales, which are shed dead keratinized cells, occur with psoriasis and eczema. They're irregular, flaky, and variable in size. Usually silver, white, or tan, they can be thick, thin, dry, or oily.
When a skin lesion can be cancer?
A benign lesion is non-cancerous whereas a malignant lesion is cancerous. For example, a biopsy of a skin lesion may prove it to be benign or malignant, or evolving into a malignant lesion (called a premalignant lesion). Lesions can be defined according to the patterns they form.
How to get treat macules?
Macules often require no treatment, but laser surgery, cryosurgery, and regular surgical excision of the macule can be performed. Bleaching or peeling agents may help in some instances. In general, the avoidance of sun exposure can limit the appearance of macules on a person's skin.