“…The Wormian bones have been reported to commonly occur in healthy populations, and their presence typically is not associated with any pathological conditions (Natsis et al 2019;Andrade et al 2018;Johal et al 2017;Walulkar et al 2012); however, their significant number (above 10), size (more than 6 mm x 4 mm), or characteristic mosaic pattern are clinically considered as indicators of several congenital diseases, mostly osteogenesis imperfecta (Cremin et al 1982) exhibited by abnormally numerous Wormian bones (Semler et al 2010). Other diseases are also frequently associated with WB, such as hypophosphatasia, craniosynostosis, hypothyroidism, cleidocranial dysostosis, rickets, pyknodysostosis (osteopetrosis acro-osteolytica), pachydermoperiostosis, congenital hypothyroidism, hydrocephalus, otopalatodigital syndrome, Hajdu-Cheney syndrome, Menkes syndrome (Ratnaningrum 2020;Saylisoy 2020;Basnet et al 2019 Jeanty et al 2000). As Wormian bones are developed prenatally (Jeanty et al 2000), they can be detected during the routine USG examination, and used as the prenatal diagnosis of severe or lethal conditions (Tonni et al 2013).…”