Friday Pop Quiz #297
The correct answer is D. Ichthyosis vulgaris.
The case describes atopic dermatitis (AD), and the image presents papular eczema, a presentation more common in skin of color. Between 20-50% of patients with AD have at least one filaggrin mutation. Deficiencies in filaggrin are not exclusive to AD and are also seen in: keratosis pilaris, ichthyosis vulgaris, and hyperlinear palms. Filaggrin mutati …