Objective: Highlight the different clinical and surgical features of this pathology. Bring the experience of the service and the chirurgical specificities encountered during the care of these patients. Materiels and méthods: Retrospective study of 24 cases of paranasal sinus mucoceles collected and operated in our department since January 2017 to December 2019. Results: The average age was 41 years. We noted 22 cases of ethmoid-frontal localization, 1 case of maxillary localization and 1 case

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... sphenoidal localization. The most common symptoms were swelling of the inner corner of the eye and exophthalmia. Complicated superinfection of orbital cellulitis was revealing in 3 cases. Facial computed tomography confirmed the diagnosis in the majority of cases. Magnetic resonance imaging (MRI) was requested in 3 patients. The surgical treatment consisted of a wide marsupialization by the endo-nasal route in 24 cases and by combined approach in 1 case. A recurrence was observed in two patients, after an average delay of 12 months. Conclusion: Mucocele is a relatively rare benign pathology, its symptomatology depends on its location. CT and MRI of the facial sinuses represent the key exams for diagnostic assertion. Treatment is surgical. Endonasal endoscopic marsupialization is currently the treatment of choice.