You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following disease occurs along Blaschko lines? and explain in detail?
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.