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
Vortex Vein invasion is commonly seen in – 
Select and explain. 
A. Retinoblastoma, B. Malignant melanoma, C. Optic nerve gliomas, D. Medullo–epitheliomas
B: Malignant melanoma
Answer: B: Malignant melanoma 
Explanation: Vortex vein involvement is seen in uveal malignant melanoma.