This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Graves' Ophthalmopathy, Tumors, Fractures, and Surgery, Subject name: Ophthalmology
[{'content': 'Child with cavernous sinus meningioma shows presence of? \nSelect and explain. \nA. Ptosis left eye, B. Phthisis bulbi right eye, C. Exophthalmos right eye, D. Bell sign left eye', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Ptosis left eye.* Cavernous sinus meningioma can impinge on oculomotor nerve leading to paralysis of Levator palpebral superioris and can explain the ptosis seen in the image on the left eye.* Bell sign is seen in seventh nerve paralysis, and leads to up-rolling of eyeball on forcible closure of eye on same side of seventh nerve palsy.', 'role': 'assistant'}]