Male patient 30 yo underwent a middle ear surgery for 10 years. After surgery about 2 years, a posterior ear mass appeared and getting its size bigger .
There are thrills in the mass, and it is collapsed with palpation.
Ultrasound detects tortuous dilatation of subcutaneous vasculature at temporoparietal area on right side and around right auricular area, Doppler shows continuous flow pattern which is thought to be an AV fistula post op.
MDCT confirms an AV fistula on 1/2 right head which is supplied by superficial temporal artery and drains away by facial and right jugular veins.
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