Dental Large unilateral hypopigmented lesion on right trunk and arm in female. Which of the following best explain the etiology for it? A Autoimmune hypothesis B Neurogenic hypothesis C Genetic factors D Self destruct theory of Lerner 💡 Explanation Large unilateral hypopigmented lesion on right trunk and arm in female. Which of the following best explain the etiology for it? ✓ Correct Answer: B. Neurogenic hypothesis