What is Malignant Skin Tumors?
Malignant skin tumours are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body. Squamous-cell skin cancer is more likely to spread. It usually presents as a hard lump with a scaly top but may also form an ulcer. Melanomas are the most aggressive. Signs include a mole that has changed in size, shape, color, has irregular edges, has more than one color, is itchy or bleeds.