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皮肤淋巴瘤, 也叫皮肤淋巴瘤, is a rare type of non-Hodgkin lymphoma that affects the skin. It is a cancer of the lymphocytes (white blood cells), and there are two sub-types: B-lymphocyte (B-cell) cutaneous lymphoma and T-lymphocytes (T-cell) cutaneous lymphoma. 皮肤淋巴瘤 is sometimes incorrectly called a skin cancer because it is a cancer and it affects the skin. 然而, “skin cancer” refers to cancers that develop from skin cells (epidermal cells or melanocytes), and cutaneous lymphoma actually develops from blood cells.
湿疹, or atopic dermatitis, is an allergic condition that causes inflammation of the skin. It can be triggered by just about anything coming in contact with the skin. It occurs most commonly in people who have sensitive skin.
黑素瘤 is a type of skin cancer that begins in melanocytes – the cells that produce the pigment melanin that colors the skin, 头发和眼睛. Melanocytes also form moles, where melanoma often develops. 黑素瘤 is the most dangerous form of skin cancer. 黑素瘤 is usually the result of DNA damage caused by ultraviolet radiation from sunshine or tanning beds, but genetic defects also can trigger melanoma to develop.
牛皮癣 is a common skin condition that causes raised, red scaly patches to appear on the skin. The patches occur because the skin cells multiply much faster than normal. 牛皮癣 typically occurs on the knees, elbows and scalp but can also be found on the torso, 手掌和脚掌.