This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
middle aged women with B/L proptosis with restricted ocular movements and chemosis is euthyroid what is probable diagnosis 
Select and explain. 
A. Orbital cellulitis, B. Thyroid ophthalmspathy, C. Pseudotumor of orbit, D. orbital lymphoma
B: Thyroid ophthalmspathy
Answer: B: Thyroid ophthalmspathy 
Explanation: ref : ak khurana 7th ed