This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Most common cause of bilateral proptosis in children- 
Select and explain. 
A. Rhabdomyosarcoma, B. Neuroblastoma, C. Retinoblastoma, D. Neuroblastoma
B: Neuroblastoma
Answer: B: Neuroblastoma 
Explanation: Common cause of proptosis in children is neuroblastoma and leukemia (chloroma) and in adults is thyroid ophthalmopathy. Ref. Ak khurana 6th edition pg no 404 QUESTION REPEATED