Ophthalmology Diseases of orbit, Lids and lacrimal apparatus 1a214751 Pulsatile proptosis is a feature of- A orbital varix B Retinoblastoma C Coico - cavernous fistula D Covernous sinus thrombosis High-Yield Explanation *Coicocavernous fistula causes pulsatile proptosis. Ref: Clinical ophthalmology 2nd/e p.786