White skin cancer
White skin cancer and its precursors
White cancer is named to distinguish it from black cancer. These are basal cell tumors, so-called basal cell carcinomas, and squamous cell carcinomas. They are considered semi-malignant because, unlike black cancer, they rarely form secondary (metastatic) tumors in surrounding organs. However, they should not be considered unimportant as they can grow into the surrounding bone or cartilage tissue. For this reason, regular monitoring and treatment is necessary, especially if a precursor, an active keratosis, is present.