Skin Lesion on Knee: Causes, Symptoms, and When to See a Doctor #3251518 (License: Personal Use)

The image shows a well-demarcated, hyperkeratotic plaque with central crusting and peripheral scaling on the extensor surface of a knee. Surrounding skin appears mildly erythematous and dry, with scattered hair follicles and minor satellite papules. This presentation may suggest conditions such as psoriasis, chronic eczema, actinic keratosis, or secondary infection.

Used in dermatology educational content, patient-facing symptom checkers, or telehealth triage guides; targets users searching for visual references to skin abnormalities on joints, especially for self-assessment or consultation preparation.