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Updated: Jul 17, 2026

Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
Published on: January 17, 2025
Central nervous malformations in presence of clefts reflect developmental interplay
A A Mueller1, R Sader, K Honigmann
1Clinic for Reconstructive Surgery, Division of Cranio-Maxillofacial Surgery, University Hospital Basel, Spitalstrasse 21, CH-4031 Basel, Switzerland. anmueller@uhbs.ch
Insights
Children with cleft lip and/or palate (CLP) often have other congenital issues. This study found 21% of CLP patients had major malformations or minor anomalies, highlighting the need for specialist evaluation.
Area of Science:
- Medical Genetics
- Developmental Biology
- Pediatric Surgery
Background:
- Congenital malformations frequently accompany cleft lip and/or palate (CLP).
- Incidence rates and underlying mechanisms of these associated anomalies are not well-established.
- A comprehensive understanding is crucial for patient management and genetic counseling.
Purpose of the Study:
- To determine the incidence of additional major malformations and minor anomalies in a CLP population.
- To compare malformation rates in CLP patients with the general population.
- To investigate the organ systems most affected by malformations in non-syndromic CLP cases.
Main Methods:
- Retrospective review of 245 patients with cleft lip and/or palate from a defined geographic area.
- Systematic recording of major malformations and minor anomalies.
- Comparison of observed malformation incidences against literature-based data from the general population.
Main Results:
- 21% of CLP patients presented with major malformations or minor anomalies.
- Recognized syndromes were identified in one-fifth of affected CLP patients.
- Major malformations in non-syndromic CLP patients were most frequent in the musculoskeletal, central nervous, urogenital, and cardiovascular systems.
- Significantly increased malformation incidence in CLP patients compared to the general population was observed for the central nervous (13x), ocular (7x), and craniofacial (7x) systems.
Conclusions:
- A substantial proportion of CLP patients exhibit associated congenital anomalies, necessitating thorough specialist assessment.
- The elevated incidence of malformations in ectodermal and ecto-mesodermal derived organs underscores the developmental link between craniofacial structures and the central nervous system.
- Early identification and management of these associated anomalies are critical for improving outcomes in children with CLP.
Abstract:
Children with cleft lip and/or cleft palate (CLP) often have additional congenital malformations. The reported incidences are variable and presumed underlying mechanisms are rarely discussed. In this study, 245 CLP patients of a geographically defined population were retrospectively reviewed for additional major malformations and minor anomalies. Malformation incidences in the CLP population were compared to those in a literature-based cohort from the general population. Of the CLP patients, 21% showed either major malformations or minor anomalies. In one-fifth of them a recognized syndrome was identified. Two thirds of the CLP patients with minor anomalies also had major malformations. Major malformations in non-syndromic CLP patients were found with decreasing frequency in the musculoskeletal (5.1%), central nervous (4.2%), urogenital (3.8%) and cardiovascular (3.4%) systems. Malformations in these organ systems and minor anomalies should be ruled out by a specialist. The rise in malformation incidence, when compared to the general population, was highest for organs of ectodermal and ecto-mesodermal origin: central nervous system (13 times), ocular (7 times) and craniofacial system (7 times). The result reflects the close interplay of craniofacial and brain development.
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