| 1 | In contrast, pneumocele of the sphenoid sinus is a rare lesion. | |
| 2 | Isolated aspergillosis of the sphenoid sinus is very rare. | |
| 3 | In our case of sphenoid pneumocele with associated CSF fistula, the sphenoid sinus was packed with subcutaneous abdominal fat using transnasal endoscopic technique. | |
| 4 | Method:Analysing and summarizing 18 patients with sphenoid sinus malignant tumor in our department from 1996 to 2005. | |
| 5 | Results The tumors were resected totally in 80 patients via endoscope-assisted direct transsphenoidal approach without meningitis and CSF leakage. |
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