AI Article Synopsis
- A 22-year-old female experienced recurrent visual disturbances in her left eye, initially diagnosed as acute retrobulbar optic neuritis and treated successfully with corticosteroids.
- MRI revealed a mucocele in her left sphenoid sinus, but no optic canal damage was observed, suggesting the visual issues were due to inflammation rather than direct pressure from the mucocele.
- The case highlights the importance of considering a sphenoid sinus mucocele in patients with unilateral and recurring visual disturbances.
Article Abstract
We presented a case with sphenoid sinus mucocele associated with recurrent visual disturbance on the same side. A 22-year-old female showed two episodes of visual disturbance on the left eye for three months. She was diagnosed as acute retrobulbar optic neuritis and was treated with cortico-steroid. In two episodes visual disturbance improved in a week. MRI showed a mucocele in the left sphenoid sinus. No destruction of left optic canal was found in roentgenogram and the left optic nerve showed swelling with high intensity in T2-weighted MRI. Therefore the expansion of inflammation or edema in optic canal rather than direct compression by expanding mucocele was considered as pathogenesis of the visual disturbance. In a case of recurrent and unilateral visual disturbance, a mucocele of posterior paranasal sinus should be suspected in the differential diagnosis.
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