fig 2.

12-year-old girl with chemosis, proptosis, and bruit after motor vehicle accident.

A, Right ICA arteriogram 4 months after accident shows type A direct CCF, with dilated superior-petrosal sinus-cavernous junction (arrow) but incomplete opacification of the inferior petrosal sinus.

B, MR angiographic source images 2 years after treatment show bilateral posterior cavernous sinus signal (arrows), unchanged from 1 year earlier. No clinical signs of patent CCF were present, and an arteriogram was not performed. This case illustrates the dilemma of cavernous sinus signal as a marker for CCF.