29.12.2021 Views

Diagnostic ultrasound ( PDFDrive )

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

CHAPTER 45 Neonatal and Infant Brain Imaging 1533

A

B

C

D

FIG. 45.25 Lipoma of Corpus Callosum. (A) and (B) Coronal and sagittal sonograms show highly echogenic fat surrounded by calciication;

both are causing major acoustic shadowing. (C) Computed tomography scan shows black central fat surrounded by white lecks of calcium.

(D) Sagittal magnetic resonance scan shows fat (bright white on T1-weighted image) extending over the corpus callosum.

A B C

FIG. 45.26 Dandy-Walker Complex Compared With Normal Posterior Fossa. (A) and (B) Axial posterior fossa sonograms in two infants

with Dandy-Walker complex show a wide continuity between the fourth ventricle and the cisterna magna. (C) Normal axial sonogram of the fourth

ventricle and slightly echogenic cerebellar vermis.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!