<prompt> Lichenification occurs in which layer of skin:Stratum lucidumStratum corneumStratum granulosumStratum malpighii  <response>: Lichenification is seen in Stratum malpighii stratum Spinosum along with stratum basale LICHENIFICATION- Thickening of the epidermis and to some extent also of the dermis in response to prolonged rubbing. It is a secondary skin hyperophy ; thick, leathery skin, giving the skin a leathery bark-like appearance. It is a common consequence of atopic dermatitis;eczema and other pruritic disorders. Associated with acanthosis thickening of stratum spinosum 