Cranium of an adult male. There is distinct bunning (protrusion) of the occipital bone due to a number of wormian bones in the lambdoidal suture. Wormian bones are abnormal bones that occur within the ...

a study on lambdoid craniosynostosis identified a high prevalence of damaging de novo mutations in the BMP signaling pathway, which plays a crucial role in bone development and suture fusion.