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For further information, see CMDT Part 6-07: Seborrheic Keratoses

Key Features

  • Seborrheic keratoses are common, especially in the elderly and may be mistaken for melanomas or other types of cutaneous neoplasms

Clinical Findings

  • Seborrheic keratoses are benign plaques, beige to brown or even black, 3–20 mm in diameter, with a velvety or warty surface

  • They appear to be stuck or pasted onto the skin


  • Clinical


  • No treatment is needed

  • They may be frozen with liquid nitrogen or curetted if they itch or are inflamed but usually recur after treatment

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