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Kleeblattschadel anomaly. In utero sonographic appearance
Summary
Kleeblattschadel, a rare skull malformation, presents distinct prenatal ultrasound findings. Early recognition is crucial to differentiate it from encephalocele, aiding in appropriate management.
Area of Science:
- Medical Imaging
- Prenatal Diagnosis
- Pediatric Radiology
Background:
- Kleeblattschadel (cloverleaf skull) is a severe congenital skull malformation.
- Prenatal diagnosis relies on advanced imaging techniques.
- Accurate differentiation from other craniofacial anomalies is critical.
Observation:
- Four new cases of Kleeblattschadel diagnosed via prenatal ultrasound are presented.
- A review of five additional literature cases is included.
- Key sonographic features include an enlarged, trilobed skull, hydrocephalus, and polyhydramnios.
Findings:
- Kleeblattschadel is frequently associated with thanatophoric dwarfism.
- The most common diagnostic error is mistaking Kleeblattschadel for encephalocele.
- Ultrasound effectively demonstrates the characteristic trilobed skull shape.
Implications:
- Improved prenatal ultrasound interpretation can enhance diagnostic accuracy for Kleeblattschadel.
- Distinguishing Kleeblattschadel from encephalocele prenatally is vital for management planning.
- Understanding associated anomalies like thanatophoric dwarfism is essential for prognostication.