The strawberry skull sign is associated with which chromosomal abnormality?

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Multiple Choice

The strawberry skull sign is associated with which chromosomal abnormality?

Explanation:
The strawberry skull sign reflects abnormal skull ossification seen in Edwards syndrome, which is trisomy 18. In this condition the calvarial bones are underdeveloped, producing a strawberry-shaped contour of the skull on imaging. This appearance is a classic cue for trisomy 18 and helps set it apart from other chromosomal abnormalities. For reference, trisomy 21 (Down syndrome) and trisomy 13 (Patau) have different associated ultrasound findings, such as other craniofacial or organ anomalies, and Turner syndrome has features like cystic hygroma and edema rather than a strawberry-shaped skull.

The strawberry skull sign reflects abnormal skull ossification seen in Edwards syndrome, which is trisomy 18. In this condition the calvarial bones are underdeveloped, producing a strawberry-shaped contour of the skull on imaging. This appearance is a classic cue for trisomy 18 and helps set it apart from other chromosomal abnormalities. For reference, trisomy 21 (Down syndrome) and trisomy 13 (Patau) have different associated ultrasound findings, such as other craniofacial or organ anomalies, and Turner syndrome has features like cystic hygroma and edema rather than a strawberry-shaped skull.

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