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Diagnostic ultrasound ( PDFDrive )

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CHAPTER 45 Neonatal and Infant Brain Imaging 1567

A

B

FIG. 45.66 Subependymal Cyst. (A) and (B) Coronal and midline sagittal sonograms show cyst (arrow), which formed after cytomegalovirus

antenatal infection in the region of the caudothalamic notch, where we typically expect to see germinal matrix hemorrhage. The cyst was present

at birth.

A B C

D

E

F

FIG. 45.67 Vein of Galen Malformation. (A) and (B) Coronal and sagittal sonograms show enlarged vein of Galen (V) and straight sinus.

Echogenic arterial feeding vessels below and anterior to dilated vein of Galen (curved arrow). (C) and (D) Color Doppler and duplex Doppler

ultrasound scans show turbulent low, which clearly deines this cystic-appearing mass as vascular. (E) Sagittal magnetic resonance scan and (F)

angiogram, in a different patient, show that the echogenic region is a tortuous tangle of abnormal feeding vessels; cystic mass is dilated vein of

Galen (V).

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