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
Trouser leg appearance in myelography is seen in which tumor 
Select and explain. 
A. Extradural, B. Intradural, C. Intra medullary, D. All the above
C: Intra medullary
Answer: C: Intra medullary 
Explanation: Intramedullary  - Widening of cord, Trouser leg appearance.