This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro-ophthalmology, Subject name: Ophthalmology
Ispilateral optic atrophy with contralateral papilloedema is a feature of- 
Select and explain. 
A. Fischer syndrome, B. Foster kennedy syndrome, C. Vogt- kayanagi- Harada syndrome, D. WAGR syndrome
B: Foster kennedy syndrome
Answer: B: Foster kennedy syndrome 
Explanation: Suggests a tumour of the ipsilateral olfactory groove or orbital surface of the frontal lobe or of the pituitary body. This syndrome is due to optic nerve compression (optic atrophy) by the tumor and increased intra cranial pressure secondary to a mass ( tumor) causing contralateral papilloedema. Ref: Parson's 22 nd edition page no. 353