This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Graves' Ophthalmopathy, Tumors, Fractures, and Surgery, 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: Ans. is 'd' i.e., Sphenoidal wing meningioma "Meningiomas are the most common intracranial tumor to extend to the orbit",..............Ophthalmic oncologyo Meningiomas commonly arise from the dura of sphenoid wing, i.e. sphenoid wing meningioma.