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عمومی::
سینوس اسفنوئید
Several years later, Hirsh6 reported the successful closure of two sphenoid sinus CSF leaks through a pure endo- nasal approach.
In this sagittal image obtained during a positive MR cisternogram in a patient with a CSF leak after transsphenoidal hypophysectomy, CSF signal, which appears black, is present in the sphenoid sinus (arrow).
In this endoscopic image obtained after ethmoidectomy and sphenoidotomy, a meningocele arises from the superior (short arrow) and superolateral (long arrow) aspects of the left sphenoid sinus.
Access to the cribriform plate region and roof of the ethmoid requires a frontal craniotomy; extended craniotomy and skull base techniques with even greater brain compression provides access to the sphenoid sinus defects.
Pure endoscopic approaches provide excellent access to the ethmoid roof, cribriform plate, and most of the sphenoid sinus.
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