This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Histopathological findings, Subject name: Dental
[{'content': 'Lichenification occurs in which layer of skin: \nSelect and explain. \nA. Stratum lucidum, B. Stratum corneum, C. Stratum granulosum, D. Stratum malpighii', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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)', 'role': 'assistant'}]