This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Ophthalmology
Most common tumor to extend from intracranial to orbit is- 
Select and explain. 
A. Astrocytoma, B. Pituitary adenoma, C. Craniopharyngioma, D. Sphenoidal wing meningioma
D: Sphenoidal wing meningioma
Answer: D: Sphenoidal wing meningioma 
Explanation: *Meningiomas commonly arise from the dura of sphenoid wing, i.e.sphenoid wing meningioma. Ref:Opthalmic oncology p.84.