Objective: To study the incidence of sinusitis in patients with idiopathic orbital inflammatory pseudotumor(IOIP) and the relationship between sinusitis and IOIP.
Method: 209 IOIP cases from Jan 1, 1978 to Dec 31, 1999 in Eye Hospital, Zhongshan Ophthalmic Center, Sun Yat Sen University of Medical Sciences were reviewed. Data showed that 36 of 209 IOIP cases suffered from sinusitis including 21 cases of maxillary sinusitis, 15 case of ethmoid sinusitis, 3 case of frontal sinusitis and 3 case of sphenoid sinusitis. The total incidence of sinusitis is 17.2%. Proptosis, restrictive movement of the involved eye, eyelid or conjunctive congestion, decreased eyesight and palpable orbital masses were the main clinical findings. All patients showed a space occupied lesion in their orbits. 27 patients received combined surgical management and corticosteroids treatment. 9 patients received systemic corticosteroids treatment.
Result: Therapy showed that the full recovery response rate was 33.3% (12/36) and the partial recovery response was 50.0% (18/36). The recurrence rate was 16.7% (6/36).
Conclusion: Some patients suffered from sinusitis and sinusitis may be a cause in the etiology of IOIP.