Sometimes there is an overproduction of scar tissue because the process of collagen formation does not stop when the wound is healed, resulting in the formation of a raised scar called a keloid. Basal...Sometimes there is an overproduction of scar tissue because the process of collagen formation does not stop when the wound is healed, resulting in the formation of a raised scar called a keloid. Basal cell carcinoma is the most common of all cancers that occur in the United States and is frequently found on areas most susceptible to long-term sun exposure such as the head, neck, arms, and back.
