PMC9983718_01
Images of right forehead soft tissue mass.
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On physical exam, he was noted to have a 3 x 3 cm soft tissue mass on the right forehead with superficial ulceration (Figure 1). On POCUS examination, the forehead mass was found to have pulsatile internal flow concerning for a vascularized structure such as an arteriovenous malformation (AVM) (Figure 2 and Supplemental Video S1).
A, B are long axis POCUS images of the right forehead soft tissue mass (B with color Doppler). C, D are short axis POCUS images (D with color Doppler). B and D demonstrate the"Ying-Yang" or "Pepsi" sign, which is due to bidirectional or turbulent blood flow.
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On POCUS examination, the forehead mass was found to have pulsatile internal flow concerning for a vascularized structure such as an arteriovenous malformation (AVM) (Figure 2 and Supplemental Video S1).
Coronal (A) and Axial (B) Head CT-Angiogram with 7mm round pool of contrast (white arrows) supplied by an artery with a questionable draining vein, consistent with an AVM or less likely pseudoaneurysm.
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CTA was performed which revealed a 7 mm round pool of contrast at the lesion, supplied by an artery with a questionable draining vein, consistent with an AVM or less likely pseudoaneurysm (Figure 3).