Figure 1

A red, pulsatile and warm mass was found in the region of the patient’s left lower eyelid and left cheek. The lesion partially obstructed sight view."

Figure 2

Conventional ultrasound and color Doppler imaging showed a subcutaneous AVM mass with both the left cheek (A) and left lower eyelid (B) involved. The nidus presented as a “mosaic” pattern of color Doppler signals with a mixture of red and blue color patterns in the anechoic structure. Spectral waveform of feeding arteries indicated low peripheral resistance (C). (Arrows, maxilla; *, eyeball)"

Figure 3

Color Doppler imaging showed blood flow signals in the deep of the left orbit apex, approximately 25-35 mm behind the posterior eyeball wall (A). Compared with same area in the right orbit (B), signals in left orbit strongly suggested abnormal vascular existence. (*, eyeball)"

Figure 4

CEUS showed obvious enhancement in the suspicious abnormal vascular area (arrows) while the extent of the lesion was larger than the mass on the conventional ultrasound."

Figure 5

Axial (A) and sagittal (B, C) CTA showed a group of odd vasculatures in the left orbit. CT reconstruction showed the whole picture of this maxillofacial AVM lesion with both left lower eyelid and left cheek involved (D)."

Figure 6

Lateral angiogram of left internal carotid artery demonstrated that the abnormal vasculatures near the left orbital apex was part of the lesion, which was supplied by OA."