Cause of pulsating proptosis: (A) Lymphoma, (B) Caroticocavernous fistula, (C) Orbital cellulitis, (D) Mucocele of paranasal sinuses
Answer is B. Causes of Pulsatile Proptosis Caroticocavernous fistula Aneurysms of Ophthalmic aery Transmitted cerebral pulsation from deficient orbital roof like congenital meningocele / meningo-encephalocele