<prompt> In adult Pulsatile proptosis seen inA.V. fistulaLateral sinus thrombosisOrbital variesHemangioma  <response>: A.V. fistula: 407-Khurana 5th edition; 551-Nema 6thed; 484-Parson 21stedCauses of Pulsatile proptosis Arterio - venous aneurysm saccular aneurysm of ophthalmic artery Carotico- cavernous fistula communication between ICA and cavernous Congenital meningocele or meningo encephaloele Neurofibromatosis Traumtic or operative hiatus Embolization during arteriography is presently the treatment of choice Cavernous hemangiomaCapillary hemangioma Most common benign tumour of the orbit in adult Slowly progressive Produces axial proptosis Common ocular complications- Hyperopia- Optic nerve compression- Secondary glaucoma- Strabismus Common tumour of childhood Shows strawberry discolouration of the skin of eyelid Usually involves the supreronasal quadrant of the orbit and medial part of upper lidCauses of PseudoproptosisHigh myopiaBuphthalmosRetraction of upperlid 