<prompt> Cause of pulsating proptosisLymphomaCaroticocavernous fistulaOrbital cellulitisMucocele of paranasal sinuses  <response>: Causes of Pulsatile Proptosis Caroticocavernous fistula Aneurysms of Ophthalmic aery Transmitted cerebral pulsation from deficient orbital roof like congenital meningocele meningo-encephalocele 