This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Ash leaf macules are characteristic of 
Select and explain. 
A. Von Recklinghausen disease, B. Bournviller disease, C. Von Hipple -Lindau disease, D. Sturge - Weber syndrome
B: Bournviller disease
Answer: B: Bournviller disease 
Explanation: Ash leaf macules are hypopigmental off - white coloured macules 1 - 3 cm in zise.It is seen is tuberous sclerosis (also known as Bournville's disease).