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Objective: To determine the epidemiological, clinical and therapeutic characteristics of sinus mucoceles in Côte d'Ivoire. Materials and Methods: It is a multicenter study conducted in the three services ENT hospital and university centers and clinics in Abidjan from 1996 to 2012 (16 years). It involved patients who have been diagnosed clinically and radiologically a sinus mucocele who benefited from surgical treatment. Results: During the study period, 25 patients were recruited either a hospital incidence of 1.5 cases per year. There was a female predominance with 60% of women and 40% men with a sex ratio of 0.67. Patients consulted for headache (68%), facial swelling (68%), proptosis (28%). Allergic rhinitis is the antecedent rhinologic found most (32%) followed by sinusitis (12%) and nasal sinus surgery (12%). The naso-sinus CT performed in all our patients, diagnosed with mucocele in 100% of cases. Surgical excision was made by several surgical approach, the most used were the way of JACQUES and paralateronasal rhinotomy of MOURE. Pathological examination of the surgical specimen confirmed the diagnosis of sinus mucocele. The development was beset by complications such as eyelid swelling (1 case), blurred vision (1 case), unsightly surgical scar (1 case). Conclusion: The nasal sinus mucoceles are relatively rare benign lesions pseudo-cystic insidious evolution. Diagnosis suspected by the clinic is confirmed by the radiology. There treatment is surgical assessment. [ABSTRACT FROM AUTHOR]