58.1 MB (3.1 MB compressed)
5520 x 3680 pixels
46.7 x 31.2 cm ⏐ 18.4 x 12.3 in (300dpi)
DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Not to be used for advertising or in a defamatory context.
Seborrheic keratosis. Close-up of a seborrheic keratosis (seborrheic or senile wart) on the skin of an 85-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 mainly found on the trunk and usually occur in elderly patients. They are harmless, but as they are unsightly can be removed by cryosurgery (destruction of tissue using extreme cold) or surgical excision.
Model release available. Property release not required.