Keratosis pilaris in Child
Keratosis pilaris tends to worsen during winter months, and it usually decreases after puberty. It is typically asymptomatic, but if treatment is attempted, the affected areas are often refractory.
Keratosis pilaris is seen with increased incidence in several syndromes and disease states. In addition to atopic dermatitis, these include ichthyosis vulgaris, erythromelanosis follicularis faciei et colli (erythema, brown pigmentation, and keratosis pilaris), Graham-Little-Piccardi-Lassueur syndrome (cicatricial alopecia of the scalp, loss of pubic and axillary hairs, and keratosis pilaris), cardiofaciocutaneous syndrome, Noonan syndrome, diabetes, Down syndrome, woolly hair, and obesity.
L85.8 – Other specified epidermal thickening
5132005 – Keratosis pilaris
Differential Diagnosis & Pitfalls
- Atopic dermatitis
- Lichen nitidus – Small, dome-shaped, smooth-surfaced, nonfollicular papules on the extremities, abdomen, and penis; koebnerization is present.
- Acne vulgaris
- Facial lesions may be confused with milia or acne – Milia are yellow-white, chalky, nonfollicular, hemispherical, smooth-surfaced papules. Acne is characterized by comedones, inflammatory papules, and pustules.
- Folliculitis – Inflammatory tender follicular papules / pustules (with perilesional erythema).
- Miliaria – Inflammatory follicular papules, vesicles, or pustules on the trunk or proximal extremities; keratosis pilaris is noninflammatory.
- Pityriasis rubra pilaris
- Lichen spinulosus – Grouped keratotic spiny follicular papules coalescing to form nummular or circular plaques on the trunk and extremities.
- Phrynoderma (vitamin A deficiency) – Large individual keratotic horny papules on the buttocks, shoulders, and around the elbows and knees; there may be an underling nutritional deficiency.
Drug Reaction Data