Acquired enophthalmos associated with maxillary sinus hypoplasia and chronic maxillary sinusitis

Background:We report a case of progressive enophthalmos, maxillary sinus hy poplasia and radiological signs of sinusitis in a young woman. Case report:The patient had no history of sinus surgery or facial trauma. T here were no signs of sinusitis. Functional endoscopic sinus surgery was pr oposed to restore the communication between the nose and the antrum. Discuss:The particular aspects of asymptomatic maxillary sinus and causes o f maxillary sinus hypoplasia are discussed. We suggest that obstruction of the osteomeatal complex causes negative pressure in the maxillary sinus pro voking bone alterations; These alterations cause the maxillary sinus hypopl asia and the enophthalmos.