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Axial contrast-enhanced T1-weighted magnetic resonance (MR) ( A ) and endoscopic view ( B, C ) of juvenile angiofibroma (white asterisks) extending along the right vidian canal (white arrowheads). After removal of the vidian portion of the lesion, the endoscopic procedure is completed by extensive drilling of the pterygoid root ( B ) till the foramen lacerum ( C ; dashed white circle). Abbreviations: LR, lateral recess; MSB, middle skull base; NPH, nasopharynx; SPH, sphenoid sinus.
