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: Ophthalmology
The most common retrobulbar orbital mass in adults 
Select and explain. 
A. Neurofibroma, B. Meningioma, C. Cavernous haemangioma, D. Schwannoma
C: Cavernous haemangioma
Answer: C: Cavernous haemangioma 
Explanation: C i.e. Cavernous haemangioma The cavernous haemangioma is the most common benign orbital tumor in adultsQ, with a female preponderance of 70%. Although it may develop anywhere in orbit, it most frequently occurs with in the muscle cone just behind the globeQ.