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
On MRI the differential diagnosis of spinal cord edema is 
Select and explain. 
A. Myelodysplasia, B. Myelomalacia, C. Myeloschisis, D. Cord tumors
B: Myelomalacia
Answer: B: Myelomalacia 
Explanation: Both cord edema and myelomalacia appear hypointense on T1 and hyperintense on T2 image.