Sclerotic patch

This 35 year old Asian male patient presented with this unilateral hyperpigmented sclerotic patch over the face for 20 years. What is your diagnosis?
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Bell Eapen
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Techie Dermatologist, Information Systems PhD, Supporter of Open-Source Software, Machine Learning and AI geek, loves cricket, Canadian wine and beer. [Resume]


  1. Dear Dr. Bell,
    You should have posted 1-2 more photos with front view and with lat view showing upper level of lesions.To me lesions are raised hypopigmented(not hyper) papules and plaques + some koenner.There are islands of normal skin in between. Frankly speaking I could not diagnose it. Just a chance- can it be confluence of verruca plana.Are you planning biopsy?
    Kiran Nabar

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