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Seborrheic Keratosis

脂漏性角化症

Seborrheic keratosis

Seborrheic keratosis can be seen on those who are in 20s and almost all the elderly people have at least one. It tends to occur on the sun-damaged skin. A brown spot gradually elevates to form a nodule in a long run. It is a benign lesion. A dermoscope is a device to examine a skin lesion with strong light and is used to make a clinical diagnosis.

The management includes  cryotherapy which causes the lesion a burn injury with liquid nitrogen and a surgery.

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