How does the doctor diagnose Melanoma?

In addition to the clinical examination with the free eye, is the experienced dermatologist (dermatologists) illumination microscopic the investigation is available. The Illumination microscopy is a painless, non-invasive examination, the patient directly on can be carried out without any tissue must be removed. It helps to distinguish between melanoma and benign mole and the early diagnosis of melanoma improve. 
If the clinical findings Illumination microscopy or suspicious in regard to the existence of a melanoma, the question stove surgically removed and the collected tissue histological examined. The actual diagnosis is made solely histological.
The prognosis depends crucially on the histological measured depth of melanoma, which indicated in millimeters and a depth according to Breslow is designated. A penetration under a millimeter is usually a very good prognosis.