Gamuts

Delayed closure of fontanelles

The posterior fontanelle (lambdoid fontanelle, occipital fontanelle) is a gap between bones in the human skull (known as fontanelle), triangular in form and situated at the junction of the sagittal suture and lambdoidal suture. It generally closes in 6–8 weeks from birth. [Source: Wikipedia ]

May Be Caused by
 Common
Cleidocranial dysostosis
Cranium bifidum with lacunar skull
Hypothyroidism
Infantile hypothyroidism
Intrauterine growth retardation
Osteogenesis imperfecta
Premature birth
Prenatal infection
Severe rickets
Trisomy 21
 Uncommon
Aase syndrome
Aminopterin fetopathy
Aplasia cutis congenita
Chondrodysplasia punctata
Coffin-Lowry syndrome
Cutis laxa type 2
Familial idiopathic osteoarthropathy
Fetal hydantoin syndrome
Fetal primidone syndrome
Frontonasal dysplasia
GAPO syndrome
Greig cephalopolysyndactyly syndrome
Hallermann-Streiff syndrome
Hypochondroplasia
Hypophosphatasia
Infantile multisystem inflammatory disease
Kenny-Caffey syndrome
Lenz-Majewski dysplasia
Melnick-Needles osteodysplasty
Microcephalic osteodysplastic dysplasia
Occipital horn syndrome
Oculo-auriculo-vertebral spectrum
Opitz BBBG syndrome
Opsismodysplasia
Otopalatodigital syndrome type 2
Progeria
Pyknodysostosis
Rubinstein-Taybi syndrome
Schinzel-Giedion syndrome
Silver-Russell syndrome
Trisomy 13
Trisomy 18
Winchester syndrome
Yunis-Varon syndrome
Zellweger syndrome

Copyright © 2022, Charles E. Kahn, Jr., MD, MS
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