[Sphenoidal mucocele. A case report].

Mucocele of the sphenoidal sinus is a rare benign neoplasm. These tumors are probably under-diagnosed as they may be asymptomatic or cause non-specific symptoms. The findings of computed tomography and magnetic resonance imaging increase the precision of the pretherapeutic evaluation. Treatment is surgical. A case of sphenoidal sinus mucocele in a 41-year-old man is reported. Sudden dyplopia was the first symptom. The characteristics of sphenoidal mucocele are reviewed, with special attention to its clinical features and radiodiagnosis.