Light pink, ill-defined macules with gritty texture in sun-exposed areas of a farmer most likely represents which condition?

Light pink, ill-defined macules with gritty texture in sun-exposed areas of a farmer most likely represents which condition?

• A. Actinic keratosis
• B. Melasma
• C. Eczema
• D. Basal cell carcinoma

Answer: (A)

Actinic keratosis is a sun-damaged, premalignant skin lesion that presents most often on sun-exposed areas as light pink to skin-colored macules or papules with a rough, gritty, sandpaper-like surface. The texture comes from abnormal keratinocyte proliferation and hyperkeratosis from chronic UV exposure, which fits a farmer with sun exposure. These lesions are typically ill-defined and can be multiple, reflecting widespread sun damage. In contrast, melasma shows uniform hyperpigmented patches without a rough surface; eczema produces pruritic, inflamed plaques with scaling rather than gritty, flat patches; and basal cell carcinoma usually appears as a pearly nodule with telangiectasias or an ulcerated lesion, not flat, rough patches. So the light pink, ill-defined macules with gritty texture in sun-exposed areas point to actinic keratosis.

Actinic keratosis is a sun-damaged, premalignant skin lesion that presents most often on sun-exposed areas as light pink to skin-colored macules or papules with a rough, gritty, sandpaper-like surface. The texture comes from abnormal keratinocyte proliferation and hyperkeratosis from chronic UV exposure, which fits a farmer with sun exposure. These lesions are typically ill-defined and can be multiple, reflecting widespread sun damage. In contrast, melasma shows uniform hyperpigmented patches without a rough surface; eczema produces pruritic, inflamed plaques with scaling rather than gritty, flat patches; and basal cell carcinoma usually appears as a pearly nodule with telangiectasias or an ulcerated lesion, not flat, rough patches. So the light pink, ill-defined macules with gritty texture in sun-exposed areas point to actinic keratosis.