MODEL RELEASED. Keratoacanthoma. Large keratoacanthoma,also known as molluscum sebaceum,on the back of a 73 year old man's hand. Keratoacanthomas are harmless skin nodules that most commonly develop on the face and arms of elderly people. They grow rapidly and in eight weeks can reach a diameter of 2 centimetres. They slowly disappear without treatment,but some patients prefer to have them surgically removed. Their cause is unknown,but may be related to sunlight exposure. Physically they are similar to skin cancers,and a histopathological study (study of diseased tissue) may be required to distinguish one from the other | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Marazzi, Dr. P. |
Bildgröße: | 5083 px × 3449 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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