Guide | Frontal Bossing in Babies: What Parents Should Know
Frontal bossing is an unusually prominent forehead and is most often seen in infants and young children. In a newborn, it may indicate a rare syndrome affecting bone development, hormone levels, height, or other aspects of growth.
1. Causes of Frontal Bossing
Causes are generally very rare and may include hormonal disorders or inherited syndromes. One possible cause is acromegaly, a hormonal disorder in which the pituitary gland produces excess growth hormone, causing abnormal enlargement of bones in the face, skull, jaw, hands, and feet.
Other rare genetic conditions that may cause frontal bossing include:
Basal cell nevus syndrome (Gorlin syndrome): Associated with skeletal abnormalities, jaw cysts, and cancer risk.
Crouzon syndrome: Premature fusion of parts of the skull, affecting head shape.
Cleidocranial dysplasia: Affects development of the teeth, collarbones, spine, and legs; bones may be fragile, and some patients have absent collarbones.
Hurler syndrome: Associated with skeletal abnormalities, heart disease, respiratory problems, and other conditions.
Pfeiffer syndrome: Premature fusion of skull bones and large, separated fingers and toes.
Rubinstein-Taybi syndrome: Delayed growth and development, intellectual disability, and feeding difficulties.
Russell-Silver syndrome: Causes growth restriction before and after birth, a relatively large head, prominent forehead, and triangular face.
Congenital syphilis and certain antiseizure medications, such as trimethadione, may also cause frontal bossing.
2. Diagnosis
If a baby's forehead appears unusually prominent, parents should seek medical assessment. A clinician will begin with a physical examination and family history. Laboratory tests and imaging, such as X-rays or MRI, may be used to identify skull abnormalities and unusual growth. Blood tests can help diagnose genetic disorders and abnormal hormone levels.
3. Treatment
There is no treatment specifically for frontal bossing, but associated syndromes can be managed. Some patients may undergo cosmetic surgery. Although no specific surgical guidelines exist, small studies suggest that forehead reduction surgery may be effective and that side effects resolve within one year.
4. Prevention
There is no established way to prevent frontal bossing, but some steps can be taken before and during pregnancy. Genetic counseling can help assess the baby's risk of a rare disorder, followed by genetic testing when indicated. Prenatal testing, such as amniocentesis, can also evaluate fetal genetic conditions.
Syphilis screening during pregnancy is also important. If syphilis is diagnosed, antibiotic treatment can reduce transmission to the baby. Pregnant women taking antiseizure medication should discuss possible alternatives with their clinician.
Guide | Frontal Bossing in Babies: What Parents Should Know
Guide | Frontal Bossing in Babies: What Parents Should Know
Frontal bossing is an unusually prominent forehead and is most often seen in infants and young children. In a newborn, it may indicate a rare syndrome affecting bone development, hormone levels, height, or other aspects of growth.
1. Causes of Frontal Bossing
Causes are generally very rare and may include hormonal disorders or inherited syndromes. One possible cause is acromegaly, a hormonal disorder in which the pituitary gland produces excess growth hormone, causing abnormal enlargement of bones in the face, skull, jaw, hands, and feet.
Other rare genetic conditions that may cause frontal bossing include:
Basal cell nevus syndrome (Gorlin syndrome): Associated with skeletal abnormalities, jaw cysts, and cancer risk.
Crouzon syndrome: Premature fusion of parts of the skull, affecting head shape.
Cleidocranial dysplasia: Affects development of the teeth, collarbones, spine, and legs; bones may be fragile, and some patients have absent collarbones.
Hurler syndrome: Associated with skeletal abnormalities, heart disease, respiratory problems, and other conditions.
Pfeiffer syndrome: Premature fusion of skull bones and large, separated fingers and toes.
Rubinstein-Taybi syndrome: Delayed growth and development, intellectual disability, and feeding difficulties.
Russell-Silver syndrome: Causes growth restriction before and after birth, a relatively large head, prominent forehead, and triangular face.
Congenital syphilis and certain antiseizure medications, such as trimethadione, may also cause frontal bossing.
2. Diagnosis
If a baby's forehead appears unusually prominent, parents should seek medical assessment. A clinician will begin with a physical examination and family history. Laboratory tests and imaging, such as X-rays or MRI, may be used to identify skull abnormalities and unusual growth. Blood tests can help diagnose genetic disorders and abnormal hormone levels.
3. Treatment
There is no treatment specifically for frontal bossing, but associated syndromes can be managed. Some patients may undergo cosmetic surgery. Although no specific surgical guidelines exist, small studies suggest that forehead reduction surgery may be effective and that side effects resolve within one year.
4. Prevention
There is no established way to prevent frontal bossing, but some steps can be taken before and during pregnancy. Genetic counseling can help assess the baby's risk of a rare disorder, followed by genetic testing when indicated. Prenatal testing, such as amniocentesis, can also evaluate fetal genetic conditions.
Syphilis screening during pregnancy is also important. If syphilis is diagnosed, antibiotic treatment can reduce transmission to the baby. Pregnant women taking antiseizure medication should discuss possible alternatives with their clinician.
Source:
Collected online