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 -: (A) AV malformations, (B) Orbital encephalocoecle, (C) Orbital varix, (D) Neurofibromatosis
Answer is C. All are features of Orbital varix. Other circulatory disorders causing unilateral proptosis : angioneurotic edema, Orbital aneurysm. Ref: AK Khurana 6thE pg404 Img ref