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
Which is a degeneration disorder characterized by atrophic changes of the deeper structures (e.g. fat, muscle, cartilage 8 bone) involving one side of the face: 
Select and explain. 
A. Scleroderma, B. Parry Romberg syndrome, C. Miescher's syndrome, D. Peutz-Jeghers syndrome
B: Parry Romberg syndrome
Answer: B: Parry Romberg syndrome 
Explanation: None