Image of squamous cell carcinoma with central hyperkeratosis
Squamous cell carcinoma. SCC is the second most common form of skin cancer behind basal cell carcinomas. It appears as a thickening of the skin that becomes a lump, often scaly and itchy with an open sore. SCC is caused by exposure to sunlight or ultraviolet light and must be removed before it can spread and become a life-threatening form of skin cancer.
Image source: Peter Skinner / Scientific Source
Text source: DermNet NZ
Association of the American Academy of Dermatology
National Cancer Institute
National Library of Medicine