Symptoms and Signs
Sudden and rapid changes in pre-existing solar keratosis or a recurrence of the lesion post treatment may suggest the development of squamous cell cancer.
Squamous cell cancer usually arises from preexisting solar keratosis. It has the following features:
- The cancer develops initially as a small swelling with a smooth or irregular surface.
- As it increases in size, it begins to ulcerate in the center, leaving a wound that does not heal.
- The edges of the ulcer are raised and turning outwards.
- The area surrounding the ulcer appears inflamed and hard on touch.
A biopsy helps to confirm the diagnosis
