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Type IV pelvic varices in a 44 yo female due to arteriovenous fistula. (A) Magnetic resonance imaging (MRI) shows right-sided pelvic varices (double white asterisks) with flow voids and early opacification in arterial phase. (B–D) Conventional phlebography shows early arterial opacification of varices (double white asterix) due to a fistula from the left internal iliac artery (white arrow), treated with Onyx embolization (single black asterisk).
