Disorder of hyperkeratinization?: (A) Icthyosis vulgaris, (B) Vitiligo, (C) Atopic dermatitis, (D) Seborrhic dermatitis
Answer is A. Hyperkeratinization: Icthyosis vulgaris Vitiligo is hypopigmentry disorder. Atopic dermatitis: itchy lichenified lesions over flexors of elbow and knee Seborrheic dermatitis: scaly lesion Icthyosis vulgaris: AD disorder Reduced or absence of filaggrin protein and granular layer Fish-like scales on the skin.