Abstract
SUMMARY: A variety of congenital syndromes affecting the face occur due to defects involving the first and second BAs. Radiographic evaluation of craniofacial deformities is necessary to define aberrant anatomy, plan surgical procedures, and evaluate the effects of craniofacial growth and surgical reconstructions. High-resolution CT has proved vital in determining the nature and extent of these syndromes. The radiologic evaluation of syndromes of the first and second BAs should begin first by studying a series of isolated defects: CL with or without CP, micrognathia, and EAC atresia, which compose the major features of these syndromes and allow more specific diagnosis. After discussion of these defects and the associated embryology, we proceed to discuss the VCFS, PRS, ACS, TCS, Stickler syndrome, and HFM.
Abbreviations
- ACS
- auriculocondylar syndrome
- BA
- branchial arch
- CL
- cleft lip
- CL/P
- cleft lip/palate
- CP
- cleft palate
- EAC
- external auditory canal
- HFM
- hemifacial microsomia
- MDCT
- multidetector CT
- PRS
- Pierre Robin sequence
- TCS
- Treacher Collins syndrome
- VCFS
- velocardiofacial syndrome
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