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Diagnostic ultrasound ( PDFDrive )

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CHAPTER 48 The Pediatric Head and Neck 1659

Inverted

JAW

A

B

Inverted

C

D

E

FIG. 48.51 Arteriovenous Malformation. (A) Ultrasound

was performed because of excessive bleeding after tooth

extraction. Color Doppler sonogram demonstrates turbulent

low in dilated vessels. (B) Arterial Doppler sonogram within

the lesion shows very low resistance. (C) Venous Doppler

sonogram within the lesion demonstrates pulsatility. (D) Axial

contrast-enhanced computed tomography image identiies

abnormal arterial venous connection. Note enlargement and

abnormal enhancement within the marrow of the left mandible.

(E) Angiogram of the external carotid circulation demonstrates

arteriovenous shunting through inferior alveolar artery (arrowhead)

into large, draining vein (arrow).

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