which form of skin cancer may occur where skin has been injured from burns, scars, or long-standing sores?
<answer> Squamous cell carcinomas form of skin cancer may occur where skin has been injured from burns, scars, or long standing sores. <context> Squamous cell carcinomas may also occur where skin has suffered certain kinds of injury: burns, scars, long-standing sores, sites previously exposed to X-rays or certain chemicals (such as arsenic and petroleum by-products). In addition, medications or diseases that suppress the immune system may encourage development of squamous cell carcinoma.