SummarySix patients were treated for gradual onset of enophthalmos, a deep superior sulcus and globe ptosis. There was no history of orbital trauma or sinusitis. CT scan showed an opacified shrunken maxillary sinus with dehiscence and depression of the orbital floor and downward displacement of the orbital contents. Pathological review of the surgical specimens showed a respiratory mucosal lining with thick mucoid secretions, new bone formation, but no purulence. The etiology is thought to be maxillary sinus mucocele. Surgical treatment with an otolaryngologist consisted of a Caldwell-Luc procedure to evacuate the maxillary sinus with nasal antrostomy and an orbital floor exploration with insertion of a methylmethacrylate implant molded at the time of surgery to reform the orbital floor and reposition the globe. Follow-up of 2-4 years shows excellent functional and cosmetic results.
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