Wormian bones

Wormian bones, also known as intrasutural bones or sutural bones, are extra bone pieces that can occur within a suture (joint) in the skull. These are irregular isolated bones that can appear in addition to the usual centres of ossification of the skull and, although unusual, are not rare. [Source: Wikipedia ]

Synonyms

Multiple sutural bones

Sutural bones

May Be Caused by

 Common

Cleidocranial dysostosis

Hypophosphatasia

Hypothyroidism

Idiopathic Wormian bones

Infantile hypothyroidism

Normal in young infants

Osteogenesis imperfecta

Progeria

Pyknodysostosis

 Uncommon

Acrogeria

Aminopterin fetopathy

Aplasia cutis congenita

Bruck syndrome

Carbohydrate-deficient glycoprotein syndrome

Chondrodysplasia punctata Conradi-Hünermann type

Copper deficiency

Craniometaphyseal dysplasia Wormian bone type

Familial idiopathic osteoarthropathy

Gerodermia osteodysplastica

Grant syndrome

Hajdu-Cheney syndrome

Hallermann-Streiff syndrome

Hydrocephalus

Infantile hydrocephalus

Infantile multisystem inflammatory disease

Infantile osteopetrosis

Infantile-type osteopetrosis

Lateral meningocele syndrome

Mandibuloacral dysplasia

Menkes disease

Metaphyseal chondrodysplasia Jansen type

Normal variant

Osteogenesis imperfecta type 1

Osteogenesis imperfecta type 3

Osteogenesis imperfecta type 4

Oto-facio-osseous-gonadal syndrome

Otopalatodigital syndrome

Pachydermoperiostosis

Prader-Willi syndrome

Ritscher-Shinzel syndrome

Schinzel-Giedion syndrome

Sclerosteosis

Short stature - wormian bones - dextrocardia

Stratton-Parker syndrome

Trisomy 21

Zellweger syndrome