Abstract:

Mucoceles are benign tumors of the sinuses, caused by obstruction of the sinus ostium. They most often affect the frontal and the ethmoid sinuses.The clinical representation of mucoceles is changeable according to their sizes, their extensions, and the nature of the affected sinus. The diagnosis of a mucocele is based on computed tomography (CT) or even better magnetic resonance imaging. Despite their benign nature, they can be responsible for serious complications that can affect the visual prognosis and require urgent treatment. The clinical case describes a 52-year-old with bipolar disorder, stable under treatment for 10 years. The patient has a right frontal mucosal with intracranial extension compressing the frontal lobe, revealed by the sudden change in the patients psychiatric manifestations. which presents a very rare and atypical entity.

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