Spontaneous Lateral Sphenoid Cephaloceles: Anatomic Factors Contributing to Pathogenesis and Proposed Classification

From the Department of Radiology and Biomedical Imaging (F.S., C.M.G.) University of California, San Francisco, San Francisco, California; Department of Radiology (H.R.H.), University of Utah, Salt Lake City, Utah; Department of Radiology (M.A.M.), Medical Collesge of Wisconsin, Milwaukee, Wisconsin; and Department of Radiology (P.C.), University of Alabama, Birmingham, Alabama.

From the Department of Radiology and Biomedical Imaging (F.S., C.M.G.) University of California, San Francisco, San Francisco, California; Department of Radiology (H.R.H.), University of Utah, Salt Lake City, Utah; Department of Radiology (M.A.M.), Medical Collesge of Wisconsin, Milwaukee, Wisconsin; and Department of Radiology (P.C.), University of Alabama, Birmingham, Alabama.

From the Department of Radiology and Biomedical Imaging (F.S., C.M.G.) University of California, San Francisco, San Francisco, California; Department of Radiology (H.R.H.), University of Utah, Salt Lake City, Utah; Department of Radiology (M.A.M.), Medical Collesge of Wisconsin, Milwaukee, Wisconsin; and Department of Radiology (P.C.), University of Alabama, Birmingham, Alabama.

From the Department of Radiology and Biomedical Imaging (F.S., C.M.G.) University of California, San Francisco, San Francisco, California; Department of Radiology (H.R.H.), University of Utah, Salt Lake City, Utah; Department of Radiology (M.A.M.), Medical Collesge of Wisconsin, Milwaukee, Wisconsin; and Department of Radiology (P.C.), University of Alabama, Birmingham, Alabama.

From the Department of Radiology and Biomedical Imaging (F.S., C.M.G.) University of California, San Francisco, San Francisco, California; Department of Radiology (H.R.H.), University of Utah, Salt Lake City, Utah; Department of Radiology (M.A.M.), Medical Collesge of Wisconsin, Milwaukee, Wisconsin; and Department of Radiology (P.C.), University of Alabama, Birmingham, Alabama.