Brachycephaly refers to a calvarial shape where the bi-parietal diameter to fronto-occipital diameter approaches the 95th percentile. It can result from a craniosynostosis involving the bicoronal and/or bilambdoid sutures.
Brachycephaly can be associated with numerous syndromes which include:
- brachycephaly with syndactyly
- Carpenter syndrome
- Cornelia de Lange syndrome
- cleidocranial dysostosis
- chromosomal anomalies
- Larsen syndrome
- Roberts syndrome
The head may appear rounder than usual on an axial scan and the cephalic index is increased.
- 1. Merz E, Bahlmann F. Ultrasound in obstetrics and gynecology. Thieme Medical Publishers. (2005) ISBN:1588901475. Read it at Google Books - Find it at Amazon
- 2. Entezami M, Albig M, Knoll U et-al. Ultrasound Diagnosis of Fetal Anomalies. Thieme. (2003) ISBN:1588902129. Read it at Google Books - Find it at Amazon
- 3. Borenstein M, Dagklis T, Csapo B et-al. Brachycephaly and frontal lobe hypoplasia in fetuses with trisomy 21 at 11 + 0 to 13 + 6 weeks. Ultrasound Obstet Gynecol. 2006;28 (7): 870-5. doi:10.1002/uog.3858 - Pubmed citation