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Diagnostic ultrasound ( PDFDrive )

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1690 PART V Pediatric Sonography

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FIG. 49.23 Caudal Regression Syndrome in 4-Week-Old Girl. (A) Sagittal view of the conus medullaris reveals its tip is abnormally blunted

(arrow). (B) Sagittal view of the truncated, distal end of the vertebral column reveals an abnormally upturned and truncated cartilaginous tip (black

arrows). (C) Transverse view of absent sacrum at the expected position of the sacral spine shows the cartilaginous posterior margin of the iliac

wings to be directly apposed (arrow) with no separating sacrum. (D) Normal comparison of the relationship of the posterior, cartilaginous iliac

wings (arrow) in most infants. (E) Frontal radiograph of the pelvis demonstrates the directly apposed medial aspects of the iliac wings, absent

distal lumbar and sacral spine, and dislocated hips. (F) Lateral radiograph demonstrates the truncated vertebral column.

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