Seborrheic Keratoses

Seborrheic keratoses (SK) are benign proliferations of epidermal cells. They are extremely common in the elderly and consist of well-defined, raised papules or plaques with rough warty surface. A characteristic feature of SK is that they seem to be stuck onto the skin (Fig. 7). Color varies from skin-colored to brown or black. Der- -g matosis papulosa nigra is a variant that occurs in African-Americans, mostly on the face. Lesions are small, black, and multiple. On histological examination, there is £

hyperkeratosis, acanthosis, papillomatosis, and cyst formation.

Cryotherapy with liquid nitrogen is highly effective (17). Inflammation and redness are evident immediately, and the lesion sloughs off in approximately 2 >3


Curettage and electrodesiccation are also effective but require local anesthesia.

Laser therapy (Ultrapulse CO2 or erbium) is an elegant but expensive modality to treat multiple SK.

Figure 7 Seborrheic keratosis shows a verrucous hyperpigmented surface with characteristic stuck-on appearance.
How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

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