Solar keratoses or actinic keratoses are single, small scaly plaques occuring as a result of sun damage to the skin.
Occurs in the middle-aged and elderly.
Solar keratoses are seen in fair-skinned patients associated with sun exposure. They are most common in patients who burn easily and tan poorly. There is debate as to whether solar keratoses leads to squamous cell carcinoma, or whether squamous cell carcinomas arise in the same areas due to the sun damage.
Lesions initially appear as a small, well-demarcated, red brown plaque that progress to become more erythematous and hyperkeratotic. Solar keratoses bleed easily with minor trauma.
Treatment includes cryotherapy, curettage or topical 5-fluorouracil.