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: Pediatrics
Nagayama spots is seen in 
Select and explain. 
A. Measles, B. Mumps, C. Rubella, D. Roseola infantum
D: Roseola infantum
Answer: D: Roseola infantum 
Explanation: Ulcer at Uvulopalatoglossal  junction is called Nagayama spots caused by Roseola infantum.