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Diagnostic ultrasound ( PDFDrive )

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FIG. 31.12 Sonographic Findings in Trisomy 13. (A) Alobar holoprosencephaly at 11 weeks. (B) Proboscis (arrow). (C) Postaxial polydactyly

on three-dimensional image at 14 weeks. (D) Three-dimensional scan of a third-trimester fetus shows a large, midline facial cleft.

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FIG. 31.13 Second-Trimester Sonographic Findings in Triploidy. (A) Dandy-Walker malformation (arrow). (B) and (C) Asymmetrical IUGR.

Note the discrepancy in size of the head and body. (D) Syndactyly of the ingers (arrow). (E) Scan through the placenta showing multiple lucencies

as well as an omphalocele (arrow). (F) Maternal ovaries with multiple cysts characteristic of theca lutein cysts.

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