Actinic damage lesions associated with squamous cell carcinoma risk include which features?

Actinic damage lesions associated with squamous cell carcinoma risk include which features?

• A. Actinic keratoses with scaling, crusting, ulceration, hyperkeratosis, and possibly telangiectases
• B. Dry eczema with lichenification
• C. Fungal infection with scaling
• D. Bacterial dermatitis

Answer: (A)

Chronic sun damage produces actinic keratoses, which are precancerous lesions signaling increased risk for squamous cell carcinoma. These lesions typically appear on sun-exposed skin as rough, scaly or crusted patches or plaques. The features described—scaling, crusting, possible ulceration, hyperkeratosis (thickened epidermis), and telangiectases (small visible blood vessels)—are classic manifestations of actinic damage. Hyperkeratosis reflects chronic UV injury; scaling and crusting show abnormal keratinization; occasional ulcers can occur in tougher, thickened areas; and telangiectasias indicate vascular changes from sun exposure. These lesions are most common on the face, ears, scalp, and backs of hands in older individuals with fair skin and are the ones associated with progression to squamous cell carcinoma if not treated. In contrast, dry eczema with lichenification, fungal infections, or bacterial dermatitis are inflammatory or infectious conditions not specifically tied to actinic damage or to precancerous changes.

Chronic sun damage produces actinic keratoses, which are precancerous lesions signaling increased risk for squamous cell carcinoma. These lesions typically appear on sun-exposed skin as rough, scaly or crusted patches or plaques. The features described—scaling, crusting, possible ulceration, hyperkeratosis (thickened epidermis), and telangiectases (small visible blood vessels)—are classic manifestations of actinic damage. Hyperkeratosis reflects chronic UV injury; scaling and crusting show abnormal keratinization; occasional ulcers can occur in tougher, thickened areas; and telangiectasias indicate vascular changes from sun exposure. These lesions are most common on the face, ears, scalp, and backs of hands in older individuals with fair skin and are the ones associated with progression to squamous cell carcinoma if not treated. In contrast, dry eczema with lichenification, fungal infections, or bacterial dermatitis are inflammatory or infectious conditions not specifically tied to actinic damage or to precancerous changes.