A 23-year old male presents with progressive proptosis of his right eye. The proptosis increases on bending forward and is compressible. No thrill or bruit was present. Orbital ultrasound revealed an echogenic mass with foci of echo shadows. The most likely diagnosis is
Ans. c. Orbital varix
Orbital AV fistula
Orbital encephalocoecle
Orbital varix
Neurofibromatosi