This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune skin disorders, Subject name: Dental
Cafe au lait spots seen in? 
Select and explain. 
A. NF, B. Gardner syndrome, C. Cockayne syndrome, D. Down syndrome
A: NF
Answer: A: NF 
Explanation: clinical criteria to diagnose neurofibromatosis include 6 or more cafeaelait macules, 2 or more neurofibromas, Freckling in axillary and inguinal regions, Optic gliomas , 2 or more Lisch nodules, A distinctive osseous lesion, A first degree relative with NF1. Page no 322 Reference IADVL's concise textbook of dermatology