Anatomic variations in the frontal osseous septations.

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Presentation transcript:

Anatomic variations in the frontal osseous septations. Anatomic variations in the frontal osseous septations. A, Inferior surface of the frontal bone. B, Coronal CT section. C, Sagittal CT section. Variations in the union of the osseous septations of the frontal bone with the subjacent air cells lead to great diversity in the arrangements of air spaces bordering the FSDP. A well-corticated osseous rim (arrows) marginates the uppermost portion of the superior compartment of the FSDP at the anteroinferior aspect of the frontal bone. The left side shows multiple openings of the frontal sinuses into the FSDP. David L. Daniels et al. AJNR Am J Neuroradiol 2003;24:1618-1627 ©2003 by American Society of Neuroradiology