AJDRAJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology, Vol 19, Issue 8 1448-1449, Copyright © 1998 by American Society of Neuroradiology


ARTICLES

Superior blowout fracture of the orbit: the blowup fracture

MI Rothman, EM Simon, GH Zoarski and MT Zagardo
Department of Diagnostic Radiology, University of Maryland Medical Systems, Baltimore 21201, USA.

We describe a patient who sustained a blowout fracture of the superior orbital roof without an orbital rim fracture. The initial CT study (obtained with 10-mm-thick sections) did not show herniation of the intraorbital fat into the anterior cranial fossa; however, thin (3-mm- thick) direct orbital sections showed a fracture of the midportion of the superomedial orbital roof with displacement of the fracture fragment into the anterior cranial fossa.