PMC3279694_01
Axial CT scan demonstrates arachnoid pit lateral to sphenoid sinus (black arrow). An approximately 9-mm size defect in the left superolateral wall of the sphenoid sinus (white asterisk) just lateral to foramen rotundum, with a soft tissue density mass filling the adjacent part of the sphenoid sinus. Notice the pneumatization of most far lateral recesses of sphenoid sinus (white arrow).
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F1
Computed tomography of brain and paranasal sinuses demonstrated bilateral arachnoid pit lateral to sphenoid sinus and osseous erosion lateral to the foramen rotundum, lateral sphenoid sinus recess pneumatization, and an approximately 9-mm size defect in the left anterolateral wall of the sphenoid sinus just lateral to foramen rotundum, with a soft tissue density mass filling the adjacent part of the sphenoid sinus [Figures 1-4].
Coronal-reformatted CT scan demonstrates osseous erosion lateral to the left foramen rotundum and lateral sphenoid sinus recess pnematization. An approximately 9-mm size defect in the left superolateral wall of the sphenoid sinus (white asterisk) just lateral to foramen rotundum (black arrow), with a soft tissue density mass filling the sphenoid sinus (curved arrow).
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F2
Computed tomography of brain and paranasal sinuses demonstrated bilateral arachnoid pit lateral to sphenoid sinus and osseous erosion lateral to the foramen rotundum, lateral sphenoid sinus recess pneumatization, and an approximately 9-mm size defect in the left anterolateral wall of the sphenoid sinus just lateral to foramen rotundum, with a soft tissue density mass filling the adjacent part of the sphenoid sinus [Figures 1-4].
Arachnoid pit lateral to the right sphenoid sinus is noted (arrow).
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F3
Computed tomography of brain and paranasal sinuses demonstrated bilateral arachnoid pit lateral to sphenoid sinus and osseous erosion lateral to the foramen rotundum, lateral sphenoid sinus recess pneumatization, and an approximately 9-mm size defect in the left anterolateral wall of the sphenoid sinus just lateral to foramen rotundum, with a soft tissue density mass filling the adjacent part of the sphenoid sinus [Figures 1-4].
Coronal-reformatted CT scan demonstrates arachnoid pits (white arrows) lateral to sphenoid sinus. A soft tissue density mass filling the sphenoid sinus is noted (black arrow).
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F4
Computed tomography of brain and paranasal sinuses demonstrated bilateral arachnoid pit lateral to sphenoid sinus and osseous erosion lateral to the foramen rotundum, lateral sphenoid sinus recess pneumatization, and an approximately 9-mm size defect in the left anterolateral wall of the sphenoid sinus just lateral to foramen rotundum, with a soft tissue density mass filling the adjacent part of the sphenoid sinus [Figures 1-4].
Coronal IR-FSE T2-weighted image demonstrates left temporal lobe herniation through a wide defect in the left inferiolateral wall of sphenoid sinus surrounded by a cerebrospinal fluid filled meningeal sac.
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F5
Magnetic resonance imaging demonstrated left temporal lobe herniation through a wide defect in the left inferiolateral wall of sphenoid sinus surrounded by a cerebrospinal fluid filled meningeal sac which contains the herniated brain parenchyma [Figures 5, 6].
Axial T2-weighted spin-echo imaging demonstrate the left temporal lobe herniation through a wide defect in the left inferiolateral wall of sphenoid sinus surrounded by a cerebrospinal fluid filled meningeal sac.
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F6
Magnetic resonance imaging demonstrated left temporal lobe herniation through a wide defect in the left inferiolateral wall of sphenoid sinus surrounded by a cerebrospinal fluid filled meningeal sac which contains the herniated brain parenchyma [Figures 5, 6].