[Proptosis and optic nerve compression caused by unilateral ethmoidal pyocele: a case report].

This paper presents the case of a 29 year-old male with a left ethmoidal pyocele with orbital and intracranial extensions causing proptosis and a temporal visual field defect of the left eye. The patient had a history of nasal injury as a result of traffic accident eleven years ago, and was well until four months prior to his first visit at which time he had an onset of left eye pain, proptosis, and blurring of vision developed following a URI episode. Since then, fluctuation of symptoms was noted with exacerbation when contracting a common cold. The left ethmoidal pyocele was diagnosed via clinical features and roentgenographic findings. The patient received a Caldwell Luc Operation with endonasal ethmoidectomy and the postoperative condition was good except for constriction of the entire visual field and the depression of temporal internal isopters of the left eye.