Areas of sun damaged skin (actinic keratoses) are often precursors for squamous cell cancer.

Squamous cell carcinoma can sometimes spread into the body. Actinic keratoses are seen as scaling patches, which vary in color from pink to brown. They occur frequently on the skin areas that are frequently exposed to sunlight – on the head, back of the hands, lips and legs.

Actinic keratosis is a precancerous lesion

Pladecellekræft (planocellulært karcinom)