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
[{'content': 'Which of the following tumours present with proptosis  a) Neuroblastoma  b) Nephroblastoma  c) Germ cell tumour  d) Medulloblastoma  e) Meningioma \nSelect and explain. \nA. abe, B. acd, C. cde, D. abd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Orbital tumors causing proptosis \n\nPrimal), : Dermoid cyst, osteoma, lymphoma, lymphosarcoma, optic nerve glioma, optic nerve sheath meningioma, retinoblastoma\nMetastasis :- Breast, lung, prostate, kidney (nephroblastoma), melanoma, neuroblastoma, GIT, Ewings sarcoma, wilms tumor.', 'role': 'assistant'}]