Which of the following disease occurs along Blaschko lines?: (A) SJS, (B) Inverse psoriasis, (C) Incontinentia pigmentosa, (D) Intertigo
Answer is C. Blaschko lines are lines of skin cell migration during embryogenesis, which are longitudinally oriented on limbs & curved on trunk.
Diseases that occur along Blaschko lines are Incontinentia pigmentosa, Nevus depigmentosus.