PMC4065426_01
Clinical photograph of the patient did not reveal any facial asymmetry
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F1
No obvious facial asymmetry was noted [Figure 1].
Orthopantomogram showing radiolucent lesion involving left mandibular ramus (white arrow head) with fine septations and soap bubble appearance
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F2
The patient was advised an orthopantomogram (OPG) which was suggestive of a large expansile radiolucent lesion with soap bubble appearance in left ramus and angle of mandible extending up to molar area [Figure 2].
Noncontrast bone window settings showing expansile lytic lesion with cortical thinning involving the left mandibular ramus
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F3
The NCCT showed a large expansile lytic lesion with cortical thinning and destruction involving the left ramus of mandible [Figure 3].
Sagittal reconstructed computed tomography image showing tortuous arterial feeders (yellow arrow) from left external carotid artery supplying the enhancing mandibular arteriovenous malformation (AVM; white arrow)
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F4
Contrast study showed an enhancing lesion with abnormal tuft of tortuous, dilated feeding vessels at the site of lesion [Figure 4].
CT angiography axial image showing arterial feeders (yellow arrow) from external carotid and tortuous venous channels associated with enhancing AVM (white arrow)
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F5
On CT angiography, multiple arterial feeders to the lesion were seen originating from left external carotid artery with venous drainage into left external jugular vein [Figure 5].