Seborrheic keratosis on the scalp of a 49 year old female patient. This skin growth is caused by over-production of keratin, the tough fibrous protein found in hair and the outer layer of skin. Keratoses range from flat, dark brown rough patches to small, wart-like protrusions covered with a greasy, removable crust. They are harmless and are not contagious. Those over 50 years old and with a family history of the condition at more at risk for developing seborrheic keratosis. They can be removed by cryosurgery (destruction of tissue using extreme cold) or surgical excision. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Marazzi, Dr. P. |
Bildgröße: | 7360 px × 4912 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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