title: Pneumosinus dilatans as a cause of variable unilateral proptosis.
mesh_terms: D000328:Adult; D005094:Exophthalmos / Q000209:etiology*; D005260:Female; D005626:Frontal Sinus / Q000000981:diagnostic imaging; D006801:Humans; D009078:Mucocele / Q000150:complications*; D009915:Orbit / Q000000981:diagnostic imaging; D011859:Radiography