Hypertrophic pachymeningitis is a rare fibrosing inflamatory process i
nvolving dura mater and tentorium. In this report we are presenting co
ntrast enhanced MRI findings of an unusual case of pachymeningitis whi
ch presented with a periorbital mass due to dural sinuses occlusion an
d retrograde filling of periorbital veins through superior sagittal si
nus.