A patient presented with unilateral proptosis which was and increases on bending forward. No thrill or bruit was present. MRI shows a retroorbital mass with enhancement. The likely diagnosis is -
All are features of Orbital varix. Other circulatory disorders causing unilateral proptosis : angioneurotic edema, Orbital aneurysm. Ref: AK Khurana 6thE pg404 Img ref
AV malformations
Orbital encephalocoecle
Orbital varix
Neurofibromatosis
Diseases of orbit, Lids and lacrimal apparatus