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04 April 2022: Articles

Management of an Extensive Intraparotid and Auricular Arteriovenous Malformation

Rare disease

Sze Ying Yee E* , Shuyi Guo E , Chi Long Ho E

DOI: 10.12659/AJCR.935337

Am J Case Rep 2022; 23:e935337

Figure 1. Coronal T1-weighted (A) and axial T2-weighted (B) MRI neck images of a 40-year-old woman show “bag of worms” or tangle of serpiginous “honeycomb” flow voids in the left parotid gland and left auricle (arrowhead, B) indicating an extensive high-flow arteriovenous malformation (AVM). An intranidal aneurysm (arrow, A) is present within the AVM. Coronal contrast-enhanced (CE) MRA image (C) shows the dilated and serpiginous vessels within the left parotid and auricular AVM and dilated veins draining blood into the left external jugular vein (arrowhead). Maximum-intensity projection of CE-MRA image (D) shows the left posterior auricular artery (arrow), one of the main arterial blood supplies to the AVM, along with the superficial temporal artery. These 2 are branches of the left external carotid artery (arrow). The AVM drains predominantly into a dilated and serpiginous left external jugular vein (arrowhead).

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923