Seborrheic keratoses are the most common benign tumor in older individuals. Seborrheic keratoses have a variety of clinical appearances, as seen in the images below, and they develop from the proliferation of epidermal cells. No specific etiologic factors have been identified.
Ammonium lactate and alpha hydroxy acids have been reported to reduce the height of seborrheic keratoses
Topical treatment with tazarotene cream 0.1% applied twice daily for 16 weeks caused clinical improvement in seborrheic keratoses
A variety of techniques may be used to treat seborrheic keratoses. They include cryotherapy with carbon dioxide (dry ice) or liquid nitrogen, electrodesiccation, electrodesiccation and curettage, curettage alone, shave biopsy or excision using a scalpel, or a laser or dermabrasion surgery.