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
Voex 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: *Voex vein involvement is seen in uveal malignant melanoma. Ref: Ophthalmic pathology : guide for clinicians p.253.