Inchoate skin cancer behaves the damage of papule model skin that is erythema shape or face of skin of summary tower above more , the surface often accompanies squamate form to take off bits or scab skin to form , the benign dermatosis close such as symptom and psoriasis , eczema , inflammation 早期皮肤癌多表现为红斑状或略高出皮面的丘疹样皮损,表面常伴有鳞形脱屑或痂皮形成,症状与牛皮癣、湿疹、炎症等良性皮肤病相近。