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What is A young male presented with scaly truncal lesions. O/E genital lesions along with oral 'lace-like' lesions are seen. The most likely diagnosis is: and explain in detail?
In oral lichen planus, the characteristic lesions are white striae or papules forming a reticular lace like pattern on the buccal mucosa or lateral margins of the tongue, often with a bilaterally symmetrical distribution. Ref: Principles and Practice of Geriatric Medicine edited by M.S. John Pathy, Alan J. Sinclair, John E. Morley, 2006, Page 265