title: Unilateral proptosis due to midbrain tumour. A case report.
abstract: A case of unilateral proptosis attributed to midbrain tumour is reported. The proptosis disappeared after release of intracranial hypertension. The postulated mechanism of the unilateral proptosis on the left side is a relative increase in orbital venous stasis on that side, consequent upon intracranial hypertension.
mesh_terms: D001932:Brain Neoplasms / Q000150:complications*; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D005094:Exophthalmos / Q000209:etiology*; D006801:Humans; D007427:Intracranial Pressure; D008297:Male; D008636:Mesencephalon; D008875:Middle Aged; D011859:Radiography