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: Radiology
Radiological features of scleroderma are A/E: 
Select and explain. 
A. Diffuse periosteal reaction, B. Esophageal dysmotality, C. Erosion of tip of phalynx, D. Lung nodules
A: Diffuse periosteal reaction
Answer: A: Diffuse periosteal reaction 
Explanation: A i.e. Diffuse periosteal reaction