1. A 16-year-old boy with juvenile angiofibroma.
A 16-year-old boy with juvenile angiofibroma. A, Axial unenhanced CT scan demonstrates widening of the right sphenopalatine foramen with abnormal soft tissue obliterating the normal fat within the pterygopalatine fossa (white arrow). Soft tissue extends anteriorly into the posterior nasopharynx and posteriorly into the sphenoid bone and right sphenoid sinus (black arrow). B, Lateral projection from a right external carotid artery angiogram in the arterial phase demonstrates an attenuated tumor blush and an enlarged internal maxillary artery with tortuous vessels in the right pterygopalatine fossa (arrow).
Y.W. Lui et al. AJNR Am J Neuroradiol 2011;32:
©2011 by American Society of Neuroradiology