When treating diseases involving skin lesions, properly assessing the severity of the disease is crucial in establishing a correct treatment plan. To do this, physicians classify cases based on guidelines. These guidelines often are a trade-off between consistent and quick assessment of the case. This leaves room for improvement on both sides.
In order to speed up the assessment process and make it more consistent, the possibilities of neural networks are explored. There are two ways in which neural networks are used to analyze images of skin lesions: segmentation and classification. Segmentation is used to detect and to localize the lesion area within the image. It is commonplace in medical image research and has been done on skin lesions before. Classification is used to indicate the severity of several aspects of a lesion or the disease itself. This is much rarer and mostly not in line with existing standards used by physicians, such as the ABCDE score for skin cancer and PASI score for psoriasis.