The<unk>  is the largest organ in the body, and covers and protects the body against germs, and prevents the loss of fluids.<unk>  cell carcinoma is cancer that originates in the upper part of the<unk>  called the epidermis. Signs of<unk>  cell carcinoma include rough and flat red patches, scars,<unk>  ulcers, or other lesions of the<unk> .<unk>  biopsy can confirm whether the lesion is malignant or not. Treatments include surgery and chemotherapy.
Squamous cell carcinoma of the skin
Cutaneous lymphoma
Merkel cell cancer
Melanoma
Nevus depigmentosus
Angiokeratoma
Basal cell carcinoma
Lymphangioma circumscriptum