Endoscopy sinus surgery with complete resolution of enophthalmos in a case of silent maxillary sinus.

This paper presents a case of true silent right maxillary sinus associated with facial haemangiomae. A 45-year-old woman consulted an ophthalmologist for an asymptomatic "sinking in" of her right eye over a six-month period. Two venous haemangiomae were found: one in the right lower eyelid and one on the right of the upper lip. Ophthalmologic examination revealed a prominent right superior palpebral sulcus. Evaluation included computed tomography (CT) of the orbits, showing an increased right orbital volume and right maxillary sinusitis. The patient underwent a right endoscopic uncinectomy and maxillary antrostomy. The patient experienced a prompt resolution of the enophthalmos. Orbital implantation was not performed because the enophthalmos resolved spontaneously. No changes were observed during two years of follow-up.